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Finding the Fourth Proportional to 41.44, 56.84 and 40.69

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Solution

The fourth proportional to 41.44, 56.84 and 40.69 is: 55.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.44 : 56.84 = 40.69 : x
  2. Step 2: Convert to fraction form
    41.44/56.84 = 40.69/x
  3. Step 3: Cross multiply
    41.44x = 56.84 × 40.69
  4. Step 4: Simplify right side
    41.44x = 2,312.82
  5. Step 5: Solve for x
    x = 2,312.82/41.44
  6. Step 6: Final answer
    x = 55.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.