Home / 2,251.93-3,107.21-1,257.07

Finding the Fourth Proportional to 2,251.93, 3,107.21 and 1,257.07

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Solution

The fourth proportional to 2,251.93, 3,107.21 and 1,257.07 is: 1,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.93 : 3,107.21 = 1,257.07 : x
  2. Step 2: Convert to fraction form
    2,251.93/3,107.21 = 1,257.07/x
  3. Step 3: Cross multiply
    2,251.93x = 3,107.21 × 1,257.07
  4. Step 4: Simplify right side
    2,251.93x = 3,905,979.32
  5. Step 5: Solve for x
    x = 3,905,979.32/2,251.93
  6. Step 6: Final answer
    x = 1,734.51

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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.