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Finding the Fourth Proportional to 3,725.52, 5,579.52 and 2,187.60

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Solution

The fourth proportional to 3,725.52, 5,579.52 and 2,187.60 is: 3,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.52 : 5,579.52 = 2,187.60 : x
  2. Step 2: Convert to fraction form
    3,725.52/5,579.52 = 2,187.60/x
  3. Step 3: Cross multiply
    3,725.52x = 5,579.52 × 2,187.60
  4. Step 4: Simplify right side
    3,725.52x = 12,205,757.95
  5. Step 5: Solve for x
    x = 12,205,757.95/3,725.52
  6. Step 6: Final answer
    x = 3,276.26

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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.