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Finding the Fourth Proportional to 3,627.64, 5,005 and 2,508.64

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Solution

The fourth proportional to 3,627.64, 5,005 and 2,508.64 is: 3,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.64 : 5,005 = 2,508.64 : x
  2. Step 2: Convert to fraction form
    3,627.64/5,005 = 2,508.64/x
  3. Step 3: Cross multiply
    3,627.64x = 5,005 × 2,508.64
  4. Step 4: Simplify right side
    3,627.64x = 12,555,743.20
  5. Step 5: Solve for x
    x = 12,555,743.20/3,627.64
  6. Step 6: Final answer
    x = 3,461.13

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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.