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Finding the Fourth Proportional to 3,179.82, 4,768.82 and 1,099.28

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Solution

The fourth proportional to 3,179.82, 4,768.82 and 1,099.28 is: 1,648.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.82 : 4,768.82 = 1,099.28 : x
  2. Step 2: Convert to fraction form
    3,179.82/4,768.82 = 1,099.28/x
  3. Step 3: Cross multiply
    3,179.82x = 4,768.82 × 1,099.28
  4. Step 4: Simplify right side
    3,179.82x = 5,242,268.45
  5. Step 5: Solve for x
    x = 5,242,268.45/3,179.82
  6. Step 6: Final answer
    x = 1,648.61

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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.