Home / 2,251.60-3,107.18-1,256.85

Finding the Fourth Proportional to 2,251.60, 3,107.18 and 1,256.85

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Solution

The fourth proportional to 2,251.60, 3,107.18 and 1,256.85 is: 1,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.60 : 3,107.18 = 1,256.85 : x
  2. Step 2: Convert to fraction form
    2,251.60/3,107.18 = 1,256.85/x
  3. Step 3: Cross multiply
    2,251.60x = 3,107.18 × 1,256.85
  4. Step 4: Simplify right side
    2,251.60x = 3,905,262.33
  5. Step 5: Solve for x
    x = 3,905,262.33/2,251.60
  6. Step 6: Final answer
    x = 1,734.44

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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.