Home / 7,581.42-11,373.66-3,198.87

Finding the Fourth Proportional to 7,581.42, 11,373.66 and 3,198.87

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Solution

The fourth proportional to 7,581.42, 11,373.66 and 3,198.87 is: 4,798.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.42 : 11,373.66 = 3,198.87 : x
  2. Step 2: Convert to fraction form
    7,581.42/11,373.66 = 3,198.87/x
  3. Step 3: Cross multiply
    7,581.42x = 11,373.66 × 3,198.87
  4. Step 4: Simplify right side
    7,581.42x = 36,382,859.76
  5. Step 5: Solve for x
    x = 36,382,859.76/7,581.42
  6. Step 6: Final answer
    x = 4,798.95

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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.