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Finding the Fourth Proportional to 3,321, 4,992.84 and 2,592

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Solution

The fourth proportional to 3,321, 4,992.84 and 2,592 is: 3,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321 : 4,992.84 = 2,592 : x
  2. Step 2: Convert to fraction form
    3,321/4,992.84 = 2,592/x
  3. Step 3: Cross multiply
    3,321x = 4,992.84 × 2,592
  4. Step 4: Simplify right side
    3,321x = 12,941,441.28
  5. Step 5: Solve for x
    x = 12,941,441.28/3,321
  6. Step 6: Final answer
    x = 3,896.85

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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.