Home / 2,251.68-3,107.35-1,243.43

Finding the Fourth Proportional to 2,251.68, 3,107.35 and 1,243.43

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Solution

The fourth proportional to 2,251.68, 3,107.35 and 1,243.43 is: 1,715.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.68 : 3,107.35 = 1,243.43 : x
  2. Step 2: Convert to fraction form
    2,251.68/3,107.35 = 1,243.43/x
  3. Step 3: Cross multiply
    2,251.68x = 3,107.35 × 1,243.43
  4. Step 4: Simplify right side
    2,251.68x = 3,863,780.37
  5. Step 5: Solve for x
    x = 3,863,780.37/2,251.68
  6. Step 6: Final answer
    x = 1,715.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.