Home / 3,728.11-5,145.06-2,550.76

Finding the Fourth Proportional to 3,728.11, 5,145.06 and 2,550.76

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Solution

The fourth proportional to 3,728.11, 5,145.06 and 2,550.76 is: 3,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.11 : 5,145.06 = 2,550.76 : x
  2. Step 2: Convert to fraction form
    3,728.11/5,145.06 = 2,550.76/x
  3. Step 3: Cross multiply
    3,728.11x = 5,145.06 × 2,550.76
  4. Step 4: Simplify right side
    3,728.11x = 13,123,813.25
  5. Step 5: Solve for x
    x = 13,123,813.25/3,728.11
  6. Step 6: Final answer
    x = 3,520.23

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.