Home / 1,447.26-2,171.97-1,257.18

Finding the Fourth Proportional to 1,447.26, 2,171.97 and 1,257.18

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Solution

The fourth proportional to 1,447.26, 2,171.97 and 1,257.18 is: 1,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.26 : 2,171.97 = 1,257.18 : x
  2. Step 2: Convert to fraction form
    1,447.26/2,171.97 = 1,257.18/x
  3. Step 3: Cross multiply
    1,447.26x = 2,171.97 × 1,257.18
  4. Step 4: Simplify right side
    1,447.26x = 2,730,557.24
  5. Step 5: Solve for x
    x = 2,730,557.24/1,447.26
  6. Step 6: Final answer
    x = 1,886.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.