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Finding the Fourth Proportional to 8,889.34, 13,331.22 and 3,694

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Solution

The fourth proportional to 8,889.34, 13,331.22 and 3,694 is: 5,539.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.34 : 13,331.22 = 3,694 : x
  2. Step 2: Convert to fraction form
    8,889.34/13,331.22 = 3,694/x
  3. Step 3: Cross multiply
    8,889.34x = 13,331.22 × 3,694
  4. Step 4: Simplify right side
    8,889.34x = 49,245,526.68
  5. Step 5: Solve for x
    x = 49,245,526.68/8,889.34
  6. Step 6: Final answer
    x = 5,539.84

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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.