Home / 2,251.73-3,107.34-1,257.05

Finding the Fourth Proportional to 2,251.73, 3,107.34 and 1,257.05

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Solution

The fourth proportional to 2,251.73, 3,107.34 and 1,257.05 is: 1,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.73 : 3,107.34 = 1,257.05 : x
  2. Step 2: Convert to fraction form
    2,251.73/3,107.34 = 1,257.05/x
  3. Step 3: Cross multiply
    2,251.73x = 3,107.34 × 1,257.05
  4. Step 4: Simplify right side
    2,251.73x = 3,906,066.21
  5. Step 5: Solve for x
    x = 3,906,066.21/2,251.73
  6. Step 6: Final answer
    x = 1,734.70

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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.