Home / 8,791.21-13,186.91-2,217.39

Finding the Fourth Proportional to 8,791.21, 13,186.91 and 2,217.39

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Solution

The fourth proportional to 8,791.21, 13,186.91 and 2,217.39 is: 3,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.21 : 13,186.91 = 2,217.39 : x
  2. Step 2: Convert to fraction form
    8,791.21/13,186.91 = 2,217.39/x
  3. Step 3: Cross multiply
    8,791.21x = 13,186.91 × 2,217.39
  4. Step 4: Simplify right side
    8,791.21x = 29,240,511.28
  5. Step 5: Solve for x
    x = 29,240,511.28/8,791.21
  6. Step 6: Final answer
    x = 3,326.11

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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.