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Finding the Third Proportional to 5,181 and 7,902

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Solution

The third proportional to 5,181 and 7,902 is: 12,052.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181 : 7,902 = 7,902 : x
  2. Step 2: Convert to fraction form
    5,181/7,902 = 7,902/x
  3. Step 3: Cross multiply
    5,181x = 7,902 × 7,902
  4. Step 4: Simplify right side
    5,181x = 62,441,604
  5. Step 5: Solve for x
    x = 62,441,604/5,181
  6. Step 6: Final answer
    x = 12,052.04

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.