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Finding the Fourth Proportional to 3,008.76, 4,511.32 and 1,251.64

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Solution

The fourth proportional to 3,008.76, 4,511.32 and 1,251.64 is: 1,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.76 : 4,511.32 = 1,251.64 : x
  2. Step 2: Convert to fraction form
    3,008.76/4,511.32 = 1,251.64/x
  3. Step 3: Cross multiply
    3,008.76x = 4,511.32 × 1,251.64
  4. Step 4: Simplify right side
    3,008.76x = 5,646,548.56
  5. Step 5: Solve for x
    x = 5,646,548.56/3,008.76
  6. Step 6: Final answer
    x = 1,876.70

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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.