Home / 2,251.74-3,107.53-1,257.03

Finding the Fourth Proportional to 2,251.74, 3,107.53 and 1,257.03

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Solution

The fourth proportional to 2,251.74, 3,107.53 and 1,257.03 is: 1,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.74 : 3,107.53 = 1,257.03 : x
  2. Step 2: Convert to fraction form
    2,251.74/3,107.53 = 1,257.03/x
  3. Step 3: Cross multiply
    2,251.74x = 3,107.53 × 1,257.03
  4. Step 4: Simplify right side
    2,251.74x = 3,906,260.01
  5. Step 5: Solve for x
    x = 3,906,260.01/2,251.74
  6. Step 6: Final answer
    x = 1,734.77

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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.