Home / 3,500.50-5,251.14-2,640.28

Finding the Fourth Proportional to 3,500.50, 5,251.14 and 2,640.28

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Solution

The fourth proportional to 3,500.50, 5,251.14 and 2,640.28 is: 3,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.50 : 5,251.14 = 2,640.28 : x
  2. Step 2: Convert to fraction form
    3,500.50/5,251.14 = 2,640.28/x
  3. Step 3: Cross multiply
    3,500.50x = 5,251.14 × 2,640.28
  4. Step 4: Simplify right side
    3,500.50x = 13,864,479.92
  5. Step 5: Solve for x
    x = 13,864,479.92/3,500.50
  6. Step 6: Final answer
    x = 3,960.71

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Half scale
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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.