Home / 2,481.21-3,722.94-1,182.78

Finding the Fourth Proportional to 2,481.21, 3,722.94 and 1,182.78

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Solution

The fourth proportional to 2,481.21, 3,722.94 and 1,182.78 is: 1,774.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.21 : 3,722.94 = 1,182.78 : x
  2. Step 2: Convert to fraction form
    2,481.21/3,722.94 = 1,182.78/x
  3. Step 3: Cross multiply
    2,481.21x = 3,722.94 × 1,182.78
  4. Step 4: Simplify right side
    2,481.21x = 4,403,418.97
  5. Step 5: Solve for x
    x = 4,403,418.97/2,481.21
  6. Step 6: Final answer
    x = 1,774.71

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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.