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Finding the Fourth Proportional to 8,791.91, 13,189.16 and 2,551.11

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Solution

The fourth proportional to 8,791.91, 13,189.16 and 2,551.11 is: 3,827.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.91 : 13,189.16 = 2,551.11 : x
  2. Step 2: Convert to fraction form
    8,791.91/13,189.16 = 2,551.11/x
  3. Step 3: Cross multiply
    8,791.91x = 13,189.16 × 2,551.11
  4. Step 4: Simplify right side
    8,791.91x = 33,647,001.37
  5. Step 5: Solve for x
    x = 33,647,001.37/8,791.91
  6. Step 6: Final answer
    x = 3,827.04

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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.