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Finding the Fourth Proportional to 3,687.64, 5,531.26 and 1,495.78

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Solution

The fourth proportional to 3,687.64, 5,531.26 and 1,495.78 is: 2,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.64 : 5,531.26 = 1,495.78 : x
  2. Step 2: Convert to fraction form
    3,687.64/5,531.26 = 1,495.78/x
  3. Step 3: Cross multiply
    3,687.64x = 5,531.26 × 1,495.78
  4. Step 4: Simplify right side
    3,687.64x = 8,273,548.08
  5. Step 5: Solve for x
    x = 8,273,548.08/3,687.64
  6. Step 6: Final answer
    x = 2,243.59

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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.