Home / 3,481.11-5,220.13-1,630.73

Finding the Fourth Proportional to 3,481.11, 5,220.13 and 1,630.73

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Solution

The fourth proportional to 3,481.11, 5,220.13 and 1,630.73 is: 2,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.11 : 5,220.13 = 1,630.73 : x
  2. Step 2: Convert to fraction form
    3,481.11/5,220.13 = 1,630.73/x
  3. Step 3: Cross multiply
    3,481.11x = 5,220.13 × 1,630.73
  4. Step 4: Simplify right side
    3,481.11x = 8,512,622.59
  5. Step 5: Solve for x
    x = 8,512,622.59/3,481.11
  6. Step 6: Final answer
    x = 2,445.38

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Double scale
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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.