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Finding the Third Proportional to 1,839 and 3,966

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Solution

The third proportional to 1,839 and 3,966 is: 8,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839 : 3,966 = 3,966 : x
  2. Step 2: Convert to fraction form
    1,839/3,966 = 3,966/x
  3. Step 3: Cross multiply
    1,839x = 3,966 × 3,966
  4. Step 4: Simplify right side
    1,839x = 15,729,156
  5. Step 5: Solve for x
    x = 15,729,156/1,839
  6. Step 6: Final answer
    x = 8,553.10

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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.