Home / 3,545.91-5,319.45-1,080.18

Finding the Fourth Proportional to 3,545.91, 5,319.45 and 1,080.18

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Solution

The fourth proportional to 3,545.91, 5,319.45 and 1,080.18 is: 1,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.91 : 5,319.45 = 1,080.18 : x
  2. Step 2: Convert to fraction form
    3,545.91/5,319.45 = 1,080.18/x
  3. Step 3: Cross multiply
    3,545.91x = 5,319.45 × 1,080.18
  4. Step 4: Simplify right side
    3,545.91x = 5,745,963.50
  5. Step 5: Solve for x
    x = 5,745,963.50/3,545.91
  6. Step 6: Final answer
    x = 1,620.45

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Double scale
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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.