Home / 2,591.10-3,859.17-2,578.55

Finding the Fourth Proportional to 2,591.10, 3,859.17 and 2,578.55

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Solution

The fourth proportional to 2,591.10, 3,859.17 and 2,578.55 is: 3,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.10 : 3,859.17 = 2,578.55 : x
  2. Step 2: Convert to fraction form
    2,591.10/3,859.17 = 2,578.55/x
  3. Step 3: Cross multiply
    2,591.10x = 3,859.17 × 2,578.55
  4. Step 4: Simplify right side
    2,591.10x = 9,951,033.84
  5. Step 5: Solve for x
    x = 9,951,033.84/2,591.10
  6. Step 6: Final answer
    x = 3,840.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.