Home / 3,272.20-4,909.11-1,080.95

Finding the Fourth Proportional to 3,272.20, 4,909.11 and 1,080.95

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Solution

The fourth proportional to 3,272.20, 4,909.11 and 1,080.95 is: 1,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.20 : 4,909.11 = 1,080.95 : x
  2. Step 2: Convert to fraction form
    3,272.20/4,909.11 = 1,080.95/x
  3. Step 3: Cross multiply
    3,272.20x = 4,909.11 × 1,080.95
  4. Step 4: Simplify right side
    3,272.20x = 5,306,473.86
  5. Step 5: Solve for x
    x = 5,306,473.86/3,272.20
  6. Step 6: Final answer
    x = 1,621.69

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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.