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Finding the Third Proportional to 3,892 and 9,056

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Solution

The third proportional to 3,892 and 9,056 is: 21,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892 : 9,056 = 9,056 : x
  2. Step 2: Convert to fraction form
    3,892/9,056 = 9,056/x
  3. Step 3: Cross multiply
    3,892x = 9,056 × 9,056
  4. Step 4: Simplify right side
    3,892x = 82,011,136
  5. Step 5: Solve for x
    x = 82,011,136/3,892
  6. Step 6: Final answer
    x = 21,071.72

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.