Home / 7,180.20-10,770.30-3,281.88

Finding the Fourth Proportional to 7,180.20, 10,770.30 and 3,281.88

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Solution

The fourth proportional to 7,180.20, 10,770.30 and 3,281.88 is: 4,922.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.20 : 10,770.30 = 3,281.88 : x
  2. Step 2: Convert to fraction form
    7,180.20/10,770.30 = 3,281.88/x
  3. Step 3: Cross multiply
    7,180.20x = 10,770.30 × 3,281.88
  4. Step 4: Simplify right side
    7,180.20x = 35,346,832.16
  5. Step 5: Solve for x
    x = 35,346,832.16/7,180.20
  6. Step 6: Final answer
    x = 4,922.82

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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.