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Finding the Third Proportional to 3,387 and 7,432

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Solution

The third proportional to 3,387 and 7,432 is: 16,307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387 : 7,432 = 7,432 : x
  2. Step 2: Convert to fraction form
    3,387/7,432 = 7,432/x
  3. Step 3: Cross multiply
    3,387x = 7,432 × 7,432
  4. Step 4: Simplify right side
    3,387x = 55,234,624
  5. Step 5: Solve for x
    x = 55,234,624/3,387
  6. Step 6: Final answer
    x = 16,307.83

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.