Home / 4,115.66-5,679.56-2,227.20

Finding the Fourth Proportional to 4,115.66, 5,679.56 and 2,227.20

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Solution

The fourth proportional to 4,115.66, 5,679.56 and 2,227.20 is: 3,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.66 : 5,679.56 = 2,227.20 : x
  2. Step 2: Convert to fraction form
    4,115.66/5,679.56 = 2,227.20/x
  3. Step 3: Cross multiply
    4,115.66x = 5,679.56 × 2,227.20
  4. Step 4: Simplify right side
    4,115.66x = 12,649,501.83
  5. Step 5: Solve for x
    x = 12,649,501.83/4,115.66
  6. Step 6: Final answer
    x = 3,073.51

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Half scale
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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.