Home / 2,711.80-4,067.70-2,659.96

Finding the Fourth Proportional to 2,711.80, 4,067.70 and 2,659.96

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Solution

The fourth proportional to 2,711.80, 4,067.70 and 2,659.96 is: 3,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.80 : 4,067.70 = 2,659.96 : x
  2. Step 2: Convert to fraction form
    2,711.80/4,067.70 = 2,659.96/x
  3. Step 3: Cross multiply
    2,711.80x = 4,067.70 × 2,659.96
  4. Step 4: Simplify right side
    2,711.80x = 10,819,919.29
  5. Step 5: Solve for x
    x = 10,819,919.29/2,711.80
  6. Step 6: Final answer
    x = 3,989.94

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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.