Home / 2,542.74-3,811.11-1,081.50

Finding the Fourth Proportional to 2,542.74, 3,811.11 and 1,081.50

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Solution

The fourth proportional to 2,542.74, 3,811.11 and 1,081.50 is: 1,620.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.74 : 3,811.11 = 1,081.50 : x
  2. Step 2: Convert to fraction form
    2,542.74/3,811.11 = 1,081.50/x
  3. Step 3: Cross multiply
    2,542.74x = 3,811.11 × 1,081.50
  4. Step 4: Simplify right side
    2,542.74x = 4,121,715.47
  5. Step 5: Solve for x
    x = 4,121,715.47/2,542.74
  6. Step 6: Final answer
    x = 1,620.97

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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.