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Finding the Fourth Proportional to 41.92, 57.86 and 27.38

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Solution

The fourth proportional to 41.92, 57.86 and 27.38 is: 37.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.92 : 57.86 = 27.38 : x
  2. Step 2: Convert to fraction form
    41.92/57.86 = 27.38/x
  3. Step 3: Cross multiply
    41.92x = 57.86 × 27.38
  4. Step 4: Simplify right side
    41.92x = 1,584.21
  5. Step 5: Solve for x
    x = 1,584.21/41.92
  6. Step 6: Final answer
    x = 37.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.