Home / 7,387.20-11,080.80-3,683.88

Finding the Fourth Proportional to 7,387.20, 11,080.80 and 3,683.88

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Solution

The fourth proportional to 7,387.20, 11,080.80 and 3,683.88 is: 5,525.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.20 : 11,080.80 = 3,683.88 : x
  2. Step 2: Convert to fraction form
    7,387.20/11,080.80 = 3,683.88/x
  3. Step 3: Cross multiply
    7,387.20x = 11,080.80 × 3,683.88
  4. Step 4: Simplify right side
    7,387.20x = 40,820,337.50
  5. Step 5: Solve for x
    x = 40,820,337.50/7,387.20
  6. Step 6: Final answer
    x = 5,525.82

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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.