Home / 4,002.08-6,002.64-1,080.61

Finding the Fourth Proportional to 4,002.08, 6,002.64 and 1,080.61

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Solution

The fourth proportional to 4,002.08, 6,002.64 and 1,080.61 is: 1,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.08 : 6,002.64 = 1,080.61 : x
  2. Step 2: Convert to fraction form
    4,002.08/6,002.64 = 1,080.61/x
  3. Step 3: Cross multiply
    4,002.08x = 6,002.64 × 1,080.61
  4. Step 4: Simplify right side
    4,002.08x = 6,486,497.80
  5. Step 5: Solve for x
    x = 6,486,497.80/4,002.08
  6. Step 6: Final answer
    x = 1,620.78

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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.