Home / 5,198.76-7,174.40-2,841.12

Finding the Fourth Proportional to 5,198.76, 7,174.40 and 2,841.12

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Solution

The fourth proportional to 5,198.76, 7,174.40 and 2,841.12 is: 3,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.76 : 7,174.40 = 2,841.12 : x
  2. Step 2: Convert to fraction form
    5,198.76/7,174.40 = 2,841.12/x
  3. Step 3: Cross multiply
    5,198.76x = 7,174.40 × 2,841.12
  4. Step 4: Simplify right side
    5,198.76x = 20,383,331.33
  5. Step 5: Solve for x
    x = 20,383,331.33/5,198.76
  6. Step 6: Final answer
    x = 3,920.81

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Half scale
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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.