Home / 5,198.82-7,174.49-2,841.12

Finding the Fourth Proportional to 5,198.82, 7,174.49 and 2,841.12

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Solution

The fourth proportional to 5,198.82, 7,174.49 and 2,841.12 is: 3,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.82 : 7,174.49 = 2,841.12 : x
  2. Step 2: Convert to fraction form
    5,198.82/7,174.49 = 2,841.12/x
  3. Step 3: Cross multiply
    5,198.82x = 7,174.49 × 2,841.12
  4. Step 4: Simplify right side
    5,198.82x = 20,383,572.82
  5. Step 5: Solve for x
    x = 20,383,572.82/5,198.82
  6. Step 6: Final answer
    x = 3,920.81

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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.