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Finding the Fourth Proportional to 2,711.49, 4,067.73 and 862.73

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Solution

The fourth proportional to 2,711.49, 4,067.73 and 862.73 is: 1,294.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.49 : 4,067.73 = 862.73 : x
  2. Step 2: Convert to fraction form
    2,711.49/4,067.73 = 862.73/x
  3. Step 3: Cross multiply
    2,711.49x = 4,067.73 × 862.73
  4. Step 4: Simplify right side
    2,711.49x = 3,509,332.36
  5. Step 5: Solve for x
    x = 3,509,332.36/2,711.49
  6. Step 6: Final answer
    x = 1,294.24

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1.5x scale

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.