Home / 3,481.14-5,220.90-1,630.50

Finding the Fourth Proportional to 3,481.14, 5,220.90 and 1,630.50

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Solution

The fourth proportional to 3,481.14, 5,220.90 and 1,630.50 is: 2,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.14 : 5,220.90 = 1,630.50 : x
  2. Step 2: Convert to fraction form
    3,481.14/5,220.90 = 1,630.50/x
  3. Step 3: Cross multiply
    3,481.14x = 5,220.90 × 1,630.50
  4. Step 4: Simplify right side
    3,481.14x = 8,512,677.45
  5. Step 5: Solve for x
    x = 8,512,677.45/3,481.14
  6. Step 6: Final answer
    x = 2,445.37

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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.