Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Solving Proportions

A proportion is an equation stating two equal ratios

Annie Curtiss

on 15 December 2010

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Solving Proportions

Lesson 3 Proportions are used many times. You've probably used proportions without being aware that you were. An example of a proportion would be exchange rates. From dollars to Yen, or from Euros to Pesos or things like that. For these things, you need to use ratios. Here's an example of a proportion Problem 1 Okay, here's problem number 1. Do 4/5 and 12/15 form a proportion? The first step is to find a common multiplier. 4 can be multiplied by 3 to get 12, and 5 can be multiplied
by 3 to get 15. Since they both share a multiplier, they form
a proportion! Problem 2 You can also use cross prducts to see if two numbers form a proportion This is where we can use exchange rates. Let's use the example that that (Mexican) pesos to dollars is that 10.737 pesos = 1 dollar If you had taken a vacay in Mexico and had 250 pesos left, how many dollars would you get? Then just multiply diagonally (across) If you divide each side by 10.737 and got $23.28, Good job!!
Full transcript