Home / 3,439.53-5,157-1,247.97

Finding the Fourth Proportional to 3,439.53, 5,157 and 1,247.97

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Solution

The fourth proportional to 3,439.53, 5,157 and 1,247.97 is: 1,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.53 : 5,157 = 1,247.97 : x
  2. Step 2: Convert to fraction form
    3,439.53/5,157 = 1,247.97/x
  3. Step 3: Cross multiply
    3,439.53x = 5,157 × 1,247.97
  4. Step 4: Simplify right side
    3,439.53x = 6,435,781.29
  5. Step 5: Solve for x
    x = 6,435,781.29/3,439.53
  6. Step 6: Final answer
    x = 1,871.12

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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.