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Finding the Fourth Proportional to 4,796.91, 7,179.11 and 2,949.20

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Solution

The fourth proportional to 4,796.91, 7,179.11 and 2,949.20 is: 4,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,796.91 : 7,179.11 = 2,949.20 : x
  2. Step 2: Convert to fraction form
    4,796.91/7,179.11 = 2,949.20/x
  3. Step 3: Cross multiply
    4,796.91x = 7,179.11 × 2,949.20
  4. Step 4: Simplify right side
    4,796.91x = 21,172,631.21
  5. Step 5: Solve for x
    x = 21,172,631.21/4,796.91
  6. Step 6: Final answer
    x = 4,413.81

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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.