Home / 2,540.52-3,811.19-1,079.69

Finding the Fourth Proportional to 2,540.52, 3,811.19 and 1,079.69

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Solution

The fourth proportional to 2,540.52, 3,811.19 and 1,079.69 is: 1,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.52 : 3,811.19 = 1,079.69 : x
  2. Step 2: Convert to fraction form
    2,540.52/3,811.19 = 1,079.69/x
  3. Step 3: Cross multiply
    2,540.52x = 3,811.19 × 1,079.69
  4. Step 4: Simplify right side
    2,540.52x = 4,114,879.28
  5. Step 5: Solve for x
    x = 4,114,879.28/2,540.52
  6. Step 6: Final answer
    x = 1,619.70

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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.