Home / 3,520.11-5,280.17-1,439.63

Finding the Fourth Proportional to 3,520.11, 5,280.17 and 1,439.63

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Solution

The fourth proportional to 3,520.11, 5,280.17 and 1,439.63 is: 2,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.11 : 5,280.17 = 1,439.63 : x
  2. Step 2: Convert to fraction form
    3,520.11/5,280.17 = 1,439.63/x
  3. Step 3: Cross multiply
    3,520.11x = 5,280.17 × 1,439.63
  4. Step 4: Simplify right side
    3,520.11x = 7,601,457.54
  5. Step 5: Solve for x
    x = 7,601,457.54/3,520.11
  6. Step 6: Final answer
    x = 2,159.44

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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.