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Finding the Third Proportional to 3,938 and 9,449

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Solution

The third proportional to 3,938 and 9,449 is: 22,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938 : 9,449 = 9,449 : x
  2. Step 2: Convert to fraction form
    3,938/9,449 = 9,449/x
  3. Step 3: Cross multiply
    3,938x = 9,449 × 9,449
  4. Step 4: Simplify right side
    3,938x = 89,283,601
  5. Step 5: Solve for x
    x = 89,283,601/3,938
  6. Step 6: Final answer
    x = 22,672.32

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.