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Finding the Fourth Proportional to 3,135.68, 4,691.04 and 2,399.68

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Solution

The fourth proportional to 3,135.68, 4,691.04 and 2,399.68 is: 3,589.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.68 : 4,691.04 = 2,399.68 : x
  2. Step 2: Convert to fraction form
    3,135.68/4,691.04 = 2,399.68/x
  3. Step 3: Cross multiply
    3,135.68x = 4,691.04 × 2,399.68
  4. Step 4: Simplify right side
    3,135.68x = 11,256,994.87
  5. Step 5: Solve for x
    x = 11,256,994.87/3,135.68
  6. Step 6: Final answer
    x = 3,589.97

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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.