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Finding the Fourth Proportional to 2,591.09, 3,886.89 and 2,550.89

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Solution

The fourth proportional to 2,591.09, 3,886.89 and 2,550.89 is: 3,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.09 : 3,886.89 = 2,550.89 : x
  2. Step 2: Convert to fraction form
    2,591.09/3,886.89 = 2,550.89/x
  3. Step 3: Cross multiply
    2,591.09x = 3,886.89 × 2,550.89
  4. Step 4: Simplify right side
    2,591.09x = 9,915,028.98
  5. Step 5: Solve for x
    x = 9,915,028.98/2,591.09
  6. Step 6: Final answer
    x = 3,826.59

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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.