Finding the Third Proportional to 3,972.75 and 7,845.75
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Solution
The third proportional to 3,972.75 and 7,845.75 is: 15,494.50
Step by Step Solution
- Step 1: Write the proportion equation
3,972.75 : 7,845.75 = 7,845.75 : x - Step 2: Convert to fraction form
3,972.75/7,845.75 = 7,845.75/x - Step 3: Cross multiply
3,972.75x = 7,845.75 × 7,845.75 - Step 4: Simplify right side
3,972.75x = 61,555,793.06 - Step 5: Solve for x
x = 61,555,793.06/3,972.75 - Step 6: Final answer
x = 15,494.50
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Why These Related Problems?
These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.