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Finding the Fourth Proportional to 4,757.95, 7,129.06 and 1,636.28

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Solution

The fourth proportional to 4,757.95, 7,129.06 and 1,636.28 is: 2,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.95 : 7,129.06 = 1,636.28 : x
  2. Step 2: Convert to fraction form
    4,757.95/7,129.06 = 1,636.28/x
  3. Step 3: Cross multiply
    4,757.95x = 7,129.06 × 1,636.28
  4. Step 4: Simplify right side
    4,757.95x = 11,665,098.56
  5. Step 5: Solve for x
    x = 11,665,098.56/4,757.95
  6. Step 6: Final answer
    x = 2,451.71

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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.