Finding the Third Proportional to 817.50 and 1,809
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Solution
The third proportional to 817.50 and 1,809 is: 4,003.03
Step by Step Solution
- Step 1: Write the proportion equation
817.50 : 1,809 = 1,809 : x - Step 2: Convert to fraction form
817.50/1,809 = 1,809/x - Step 3: Cross multiply
817.50x = 1,809 × 1,809 - Step 4: Simplify right side
817.50x = 3,272,481 - Step 5: Solve for x
x = 3,272,481/817.50 - Step 6: Final answer
x = 4,003.03
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These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.