Home / 3,781.96-5,672.99-1,442.09

Finding the Fourth Proportional to 3,781.96, 5,672.99 and 1,442.09

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Solution

The fourth proportional to 3,781.96, 5,672.99 and 1,442.09 is: 2,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.96 : 5,672.99 = 1,442.09 : x
  2. Step 2: Convert to fraction form
    3,781.96/5,672.99 = 1,442.09/x
  3. Step 3: Cross multiply
    3,781.96x = 5,672.99 × 1,442.09
  4. Step 4: Simplify right side
    3,781.96x = 8,180,939.91
  5. Step 5: Solve for x
    x = 8,180,939.91/3,781.96
  6. Step 6: Final answer
    x = 2,163.15

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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.