Home / 3,781.18-5,672.33-1,183.78

Finding the Fourth Proportional to 3,781.18, 5,672.33 and 1,183.78

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Solution

The fourth proportional to 3,781.18, 5,672.33 and 1,183.78 is: 1,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.18 : 5,672.33 = 1,183.78 : x
  2. Step 2: Convert to fraction form
    3,781.18/5,672.33 = 1,183.78/x
  3. Step 3: Cross multiply
    3,781.18x = 5,672.33 × 1,183.78
  4. Step 4: Simplify right side
    3,781.18x = 6,714,790.81
  5. Step 5: Solve for x
    x = 6,714,790.81/3,781.18
  6. Step 6: Final answer
    x = 1,775.85

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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.