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Finding the Fourth Proportional to 3,129.57, 4,693.01 and 937.53

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Solution

The fourth proportional to 3,129.57, 4,693.01 and 937.53 is: 1,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.57 : 4,693.01 = 937.53 : x
  2. Step 2: Convert to fraction form
    3,129.57/4,693.01 = 937.53/x
  3. Step 3: Cross multiply
    3,129.57x = 4,693.01 × 937.53
  4. Step 4: Simplify right side
    3,129.57x = 4,399,832.98
  5. Step 5: Solve for x
    x = 4,399,832.98/3,129.57
  6. Step 6: Final answer
    x = 1,405.89

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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.