Home / 2,540.97-3,480.27-2,391.53

Finding the Fourth Proportional to 2,540.97, 3,480.27 and 2,391.53

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Solution

The fourth proportional to 2,540.97, 3,480.27 and 2,391.53 is: 3,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.97 : 3,480.27 = 2,391.53 : x
  2. Step 2: Convert to fraction form
    2,540.97/3,480.27 = 2,391.53/x
  3. Step 3: Cross multiply
    2,540.97x = 3,480.27 × 2,391.53
  4. Step 4: Simplify right side
    2,540.97x = 8,323,143.74
  5. Step 5: Solve for x
    x = 8,323,143.74/2,540.97
  6. Step 6: Final answer
    x = 3,275.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.