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Finding the Fourth Proportional to 3,892, 5,838 and 1,156

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Solution

The fourth proportional to 3,892, 5,838 and 1,156 is: 1,734

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892 : 5,838 = 1,156 : x
  2. Step 2: Convert to fraction form
    3,892/5,838 = 1,156/x
  3. Step 3: Cross multiply
    3,892x = 5,838 × 1,156
  4. Step 4: Simplify right side
    3,892x = 6,748,728
  5. Step 5: Solve for x
    x = 6,748,728/3,892
  6. Step 6: Final answer
    x = 1,734

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.