Home / 3,185.96-4,781.82-1,338.44

Finding the Fourth Proportional to 3,185.96, 4,781.82 and 1,338.44

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Solution

The fourth proportional to 3,185.96, 4,781.82 and 1,338.44 is: 2,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.96 : 4,781.82 = 1,338.44 : x
  2. Step 2: Convert to fraction form
    3,185.96/4,781.82 = 1,338.44/x
  3. Step 3: Cross multiply
    3,185.96x = 4,781.82 × 1,338.44
  4. Step 4: Simplify right side
    3,185.96x = 6,400,179.16
  5. Step 5: Solve for x
    x = 6,400,179.16/3,185.96
  6. Step 6: Final answer
    x = 2,008.87

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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.