Home / 7,581.35-11,373.56-3,198.80

Finding the Fourth Proportional to 7,581.35, 11,373.56 and 3,198.80

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Solution

The fourth proportional to 7,581.35, 11,373.56 and 3,198.80 is: 4,798.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.35 : 11,373.56 = 3,198.80 : x
  2. Step 2: Convert to fraction form
    7,581.35/11,373.56 = 3,198.80/x
  3. Step 3: Cross multiply
    7,581.35x = 11,373.56 × 3,198.80
  4. Step 4: Simplify right side
    7,581.35x = 36,381,743.73
  5. Step 5: Solve for x
    x = 36,381,743.73/7,581.35
  6. Step 6: Final answer
    x = 4,798.85

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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.