Home / 3,545.62-5,318.42-1,080.72

Finding the Fourth Proportional to 3,545.62, 5,318.42 and 1,080.72

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Solution

The fourth proportional to 3,545.62, 5,318.42 and 1,080.72 is: 1,621.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.62 : 5,318.42 = 1,080.72 : x
  2. Step 2: Convert to fraction form
    3,545.62/5,318.42 = 1,080.72/x
  3. Step 3: Cross multiply
    3,545.62x = 5,318.42 × 1,080.72
  4. Step 4: Simplify right side
    3,545.62x = 5,747,722.86
  5. Step 5: Solve for x
    x = 5,747,722.86/3,545.62
  6. Step 6: Final answer
    x = 1,621.08

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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.