Home / 3,439.40-5,159.16-974.43

Finding the Fourth Proportional to 3,439.40, 5,159.16 and 974.43

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Solution

The fourth proportional to 3,439.40, 5,159.16 and 974.43 is: 1,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.40 : 5,159.16 = 974.43 : x
  2. Step 2: Convert to fraction form
    3,439.40/5,159.16 = 974.43/x
  3. Step 3: Cross multiply
    3,439.40x = 5,159.16 × 974.43
  4. Step 4: Simplify right side
    3,439.40x = 5,027,240.28
  5. Step 5: Solve for x
    x = 5,027,240.28/3,439.40
  6. Step 6: Final answer
    x = 1,461.66

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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.