Home / 7,517.20-11,275.80-3,133.20

Finding the Fourth Proportional to 7,517.20, 11,275.80 and 3,133.20

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Solution

The fourth proportional to 7,517.20, 11,275.80 and 3,133.20 is: 4,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.20 : 11,275.80 = 3,133.20 : x
  2. Step 2: Convert to fraction form
    7,517.20/11,275.80 = 3,133.20/x
  3. Step 3: Cross multiply
    7,517.20x = 11,275.80 × 3,133.20
  4. Step 4: Simplify right side
    7,517.20x = 35,329,336.56
  5. Step 5: Solve for x
    x = 35,329,336.56/7,517.20
  6. Step 6: Final answer
    x = 4,699.80

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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.