Home / 2,713.28-4,067.76-1,251.68

Finding the Fourth Proportional to 2,713.28, 4,067.76 and 1,251.68

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Solution

The fourth proportional to 2,713.28, 4,067.76 and 1,251.68 is: 1,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.28 : 4,067.76 = 1,251.68 : x
  2. Step 2: Convert to fraction form
    2,713.28/4,067.76 = 1,251.68/x
  3. Step 3: Cross multiply
    2,713.28x = 4,067.76 × 1,251.68
  4. Step 4: Simplify right side
    2,713.28x = 5,091,533.84
  5. Step 5: Solve for x
    x = 5,091,533.84/2,713.28
  6. Step 6: Final answer
    x = 1,876.52

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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.