Home / 5,540.10-8,310.15-3,984.90

Finding the Fourth Proportional to 5,540.10, 8,310.15 and 3,984.90

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Solution

The fourth proportional to 5,540.10, 8,310.15 and 3,984.90 is: 5,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.10 : 8,310.15 = 3,984.90 : x
  2. Step 2: Convert to fraction form
    5,540.10/8,310.15 = 3,984.90/x
  3. Step 3: Cross multiply
    5,540.10x = 8,310.15 × 3,984.90
  4. Step 4: Simplify right side
    5,540.10x = 33,115,116.74
  5. Step 5: Solve for x
    x = 33,115,116.74/5,540.10
  6. Step 6: Final answer
    x = 5,977.35

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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.