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Finding the Third Proportional to 3,839 and 8,281

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Solution

The third proportional to 3,839 and 8,281 is: 17,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839 : 8,281 = 8,281 : x
  2. Step 2: Convert to fraction form
    3,839/8,281 = 8,281/x
  3. Step 3: Cross multiply
    3,839x = 8,281 × 8,281
  4. Step 4: Simplify right side
    3,839x = 68,574,961
  5. Step 5: Solve for x
    x = 68,574,961/3,839
  6. Step 6: Final answer
    x = 17,862.71

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.