Home / 2,741.30-4,112.56-1,279.66

Finding the Fourth Proportional to 2,741.30, 4,112.56 and 1,279.66

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Solution

The fourth proportional to 2,741.30, 4,112.56 and 1,279.66 is: 1,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.30 : 4,112.56 = 1,279.66 : x
  2. Step 2: Convert to fraction form
    2,741.30/4,112.56 = 1,279.66/x
  3. Step 3: Cross multiply
    2,741.30x = 4,112.56 × 1,279.66
  4. Step 4: Simplify right side
    2,741.30x = 5,262,651.57
  5. Step 5: Solve for x
    x = 5,262,651.57/2,741.30
  6. Step 6: Final answer
    x = 1,919.76

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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.