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Finding the Fourth Proportional to 8,922, 13,385.16 and 2,766

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Solution

The fourth proportional to 8,922, 13,385.16 and 2,766 is: 4,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922 : 13,385.16 = 2,766 : x
  2. Step 2: Convert to fraction form
    8,922/13,385.16 = 2,766/x
  3. Step 3: Cross multiply
    8,922x = 13,385.16 × 2,766
  4. Step 4: Simplify right side
    8,922x = 37,023,352.56
  5. Step 5: Solve for x
    x = 37,023,352.56/8,922
  6. Step 6: Final answer
    x = 4,149.67

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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.