Home / 3,439.97-5,159.95-1,131.47

Finding the Fourth Proportional to 3,439.97, 5,159.95 and 1,131.47

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Solution

The fourth proportional to 3,439.97, 5,159.95 and 1,131.47 is: 1,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.97 : 5,159.95 = 1,131.47 : x
  2. Step 2: Convert to fraction form
    3,439.97/5,159.95 = 1,131.47/x
  3. Step 3: Cross multiply
    3,439.97x = 5,159.95 × 1,131.47
  4. Step 4: Simplify right side
    3,439.97x = 5,838,325.71
  5. Step 5: Solve for x
    x = 5,838,325.71/3,439.97
  6. Step 6: Final answer
    x = 1,697.20

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Similar ratio
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1.5x scale

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.