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Finding the Fourth Proportional to 8,822.98, 13,233.65 and 2,979.64

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Solution

The fourth proportional to 8,822.98, 13,233.65 and 2,979.64 is: 4,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.98 : 13,233.65 = 2,979.64 : x
  2. Step 2: Convert to fraction form
    8,822.98/13,233.65 = 2,979.64/x
  3. Step 3: Cross multiply
    8,822.98x = 13,233.65 × 2,979.64
  4. Step 4: Simplify right side
    8,822.98x = 39,431,512.89
  5. Step 5: Solve for x
    x = 39,431,512.89/8,822.98
  6. Step 6: Final answer
    x = 4,469.18

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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.