Home / 3,998.02-5,517.28-2,229.70

Finding the Fourth Proportional to 3,998.02, 5,517.28 and 2,229.70

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Solution

The fourth proportional to 3,998.02, 5,517.28 and 2,229.70 is: 3,076.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.02 : 5,517.28 = 2,229.70 : x
  2. Step 2: Convert to fraction form
    3,998.02/5,517.28 = 2,229.70/x
  3. Step 3: Cross multiply
    3,998.02x = 5,517.28 × 2,229.70
  4. Step 4: Simplify right side
    3,998.02x = 12,301,879.22
  5. Step 5: Solve for x
    x = 12,301,879.22/3,998.02
  6. Step 6: Final answer
    x = 3,076.99

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Double 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.