Home / 6,517.20-9,775.80-2,135.10

Finding the Fourth Proportional to 6,517.20, 9,775.80 and 2,135.10

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Solution

The fourth proportional to 6,517.20, 9,775.80 and 2,135.10 is: 3,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.20 : 9,775.80 = 2,135.10 : x
  2. Step 2: Convert to fraction form
    6,517.20/9,775.80 = 2,135.10/x
  3. Step 3: Cross multiply
    6,517.20x = 9,775.80 × 2,135.10
  4. Step 4: Simplify right side
    6,517.20x = 20,872,310.58
  5. Step 5: Solve for x
    x = 20,872,310.58/6,517.20
  6. Step 6: Final answer
    x = 3,202.65

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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.