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Finding the Fourth Proportional to 3,961.56, 5,463.84 and 2,543.68

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Solution

The fourth proportional to 3,961.56, 5,463.84 and 2,543.68 is: 3,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.56 : 5,463.84 = 2,543.68 : x
  2. Step 2: Convert to fraction form
    3,961.56/5,463.84 = 2,543.68/x
  3. Step 3: Cross multiply
    3,961.56x = 5,463.84 × 2,543.68
  4. Step 4: Simplify right side
    3,961.56x = 13,898,260.53
  5. Step 5: Solve for x
    x = 13,898,260.53/3,961.56
  6. Step 6: Final answer
    x = 3,508.28

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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.