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Finding the Fourth Proportional to 8,794, 13,191 and 2,638

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Solution

The fourth proportional to 8,794, 13,191 and 2,638 is: 3,957

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794 : 13,191 = 2,638 : x
  2. Step 2: Convert to fraction form
    8,794/13,191 = 2,638/x
  3. Step 3: Cross multiply
    8,794x = 13,191 × 2,638
  4. Step 4: Simplify right side
    8,794x = 34,797,858
  5. Step 5: Solve for x
    x = 34,797,858/8,794
  6. Step 6: Final answer
    x = 3,957

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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.