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Finding the Fourth Proportional to 5,131.08, 7,691.04 and 2,935.08

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Solution

The fourth proportional to 5,131.08, 7,691.04 and 2,935.08 is: 4,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.08 : 7,691.04 = 2,935.08 : x
  2. Step 2: Convert to fraction form
    5,131.08/7,691.04 = 2,935.08/x
  3. Step 3: Cross multiply
    5,131.08x = 7,691.04 × 2,935.08
  4. Step 4: Simplify right side
    5,131.08x = 22,573,817.68
  5. Step 5: Solve for x
    x = 22,573,817.68/5,131.08
  6. Step 6: Final answer
    x = 4,399.43

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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.