Home / 2,711.39-4,067.33-1,129.77

Finding the Fourth Proportional to 2,711.39, 4,067.33 and 1,129.77

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Solution

The fourth proportional to 2,711.39, 4,067.33 and 1,129.77 is: 1,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.39 : 4,067.33 = 1,129.77 : x
  2. Step 2: Convert to fraction form
    2,711.39/4,067.33 = 1,129.77/x
  3. Step 3: Cross multiply
    2,711.39x = 4,067.33 × 1,129.77
  4. Step 4: Simplify right side
    2,711.39x = 4,595,141.77
  5. Step 5: Solve for x
    x = 4,595,141.77/2,711.39
  6. Step 6: Final answer
    x = 1,694.76

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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.