Home / 4,002.24-6,002.45-1,080.78

Finding the Fourth Proportional to 4,002.24, 6,002.45 and 1,080.78

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Solution

The fourth proportional to 4,002.24, 6,002.45 and 1,080.78 is: 1,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.24 : 6,002.45 = 1,080.78 : x
  2. Step 2: Convert to fraction form
    4,002.24/6,002.45 = 1,080.78/x
  3. Step 3: Cross multiply
    4,002.24x = 6,002.45 × 1,080.78
  4. Step 4: Simplify right side
    4,002.24x = 6,487,327.91
  5. Step 5: Solve for x
    x = 6,487,327.91/4,002.24
  6. Step 6: Final answer
    x = 1,620.92

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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.