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Finding the Fourth Proportional to 2,992.65, 4,489.46 and 884.49

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Solution

The fourth proportional to 2,992.65, 4,489.46 and 884.49 is: 1,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.65 : 4,489.46 = 884.49 : x
  2. Step 2: Convert to fraction form
    2,992.65/4,489.46 = 884.49/x
  3. Step 3: Cross multiply
    2,992.65x = 4,489.46 × 884.49
  4. Step 4: Simplify right side
    2,992.65x = 3,970,878.05
  5. Step 5: Solve for x
    x = 3,970,878.05/2,992.65
  6. Step 6: Final answer
    x = 1,326.88

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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.