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Finding the Fourth Proportional to 41.06, 56.57 and 38.86

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Solution

The fourth proportional to 41.06, 56.57 and 38.86 is: 53.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.06 : 56.57 = 38.86 : x
  2. Step 2: Convert to fraction form
    41.06/56.57 = 38.86/x
  3. Step 3: Cross multiply
    41.06x = 56.57 × 38.86
  4. Step 4: Simplify right side
    41.06x = 2,198.27
  5. Step 5: Solve for x
    x = 2,198.27/41.06
  6. Step 6: Final answer
    x = 53.54

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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.