Home / 3,198.82-4,799.62-1,120.32

Finding the Fourth Proportional to 3,198.82, 4,799.62 and 1,120.32

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Solution

The fourth proportional to 3,198.82, 4,799.62 and 1,120.32 is: 1,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.82 : 4,799.62 = 1,120.32 : x
  2. Step 2: Convert to fraction form
    3,198.82/4,799.62 = 1,120.32/x
  3. Step 3: Cross multiply
    3,198.82x = 4,799.62 × 1,120.32
  4. Step 4: Simplify right side
    3,198.82x = 5,377,086.28
  5. Step 5: Solve for x
    x = 5,377,086.28/3,198.82
  6. Step 6: Final answer
    x = 1,680.96

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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.