Proportions Word Problems

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 two ratios and set the products equal to each other.

Front

What is the formula for finding a missing value in a proportion?

Back

If a/b = c/d, then ad = bc. You can find the missing value by rearranging this equation.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions show that two ratios are equivalent.

Front

If Jason practices karate for 18 hours over three weeks, how many hours does he practice per week?

Back

6 hours per week.

Front

If a chocolate bar weighs 360 grams, how do you convert this weight to ounces?

Back

Divide the weight in grams by 28.35 to find the weight in ounces.

Front

If fourteen children made 84 bracelets, how many bracelets does one child make?

Back

One child makes 6 bracelets.

Front

If 14 children can make 84 bracelets, how many children are needed to make 192 bracelets?

Back

32 children are needed.

Front

How many scarves can Allison sew in four hours if she can sew three scarves in 75 minutes?

Back

Allison can sew 9.6 scarves in four hours.

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.