Home / 6,139.84-8,474.88-4,149.04

Finding the Fourth Proportional to 6,139.84, 8,474.88 and 4,149.04

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Solution

The fourth proportional to 6,139.84, 8,474.88 and 4,149.04 is: 5,726.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.84 : 8,474.88 = 4,149.04 : x
  2. Step 2: Convert to fraction form
    6,139.84/8,474.88 = 4,149.04/x
  3. Step 3: Cross multiply
    6,139.84x = 8,474.88 × 4,149.04
  4. Step 4: Simplify right side
    6,139.84x = 35,162,616.12
  5. Step 5: Solve for x
    x = 35,162,616.12/6,139.84
  6. Step 6: Final answer
    x = 5,726.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.