Solving Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then solve for the variable.

Front

What does it mean if two ratios form a proportion?

Back

It means that the two ratios are equivalent, meaning they represent the same relationship.

Front

Back

x = 35

Front

Back

x = 3

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio.

Front

Back

x = 2

Front

Back

The first step is to cross-multiply: v * 2 = 10 * 7.

Front

Back

No, they are not equal.

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Back

x = 8