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Finding the Third Proportional to 3,892 and 5,981

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Solution

The third proportional to 3,892 and 5,981 is: 9,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892 : 5,981 = 5,981 : x
  2. Step 2: Convert to fraction form
    3,892/5,981 = 5,981/x
  3. Step 3: Cross multiply
    3,892x = 5,981 × 5,981
  4. Step 4: Simplify right side
    3,892x = 35,772,361
  5. Step 5: Solve for x
    x = 35,772,361/3,892
  6. Step 6: Final answer
    x = 9,191.25

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.