Solving Proportions

Front

What is a proportion?

Back

A proportion is an equation that shows two equivalent ratios.

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Back

5x = 120

Front

Back

60 = 15c

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Back

4x = 192

Front

Back

15y = 180

Front

How do you cross-multiply to solve proportions?

Back

To cross-multiply, multiply the numerator of one ratio by the denominator of the other ratio.

Front

Back

ad = bc

Front

What is the first step in solving a proportion?

Back

Identify the two ratios and set them equal to each other.

Front

What does it mean if two ratios are equivalent?

Back

It means they represent the same relationship or value.

Front

What is the relationship between the means and extremes in a proportion?

Back