Home / 3,922.92-5,413.50-2,349.90

Finding the Fourth Proportional to 3,922.92, 5,413.50 and 2,349.90

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Solution

The fourth proportional to 3,922.92, 5,413.50 and 2,349.90 is: 3,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.92 : 5,413.50 = 2,349.90 : x
  2. Step 2: Convert to fraction form
    3,922.92/5,413.50 = 2,349.90/x
  3. Step 3: Cross multiply
    3,922.92x = 5,413.50 × 2,349.90
  4. Step 4: Simplify right side
    3,922.92x = 12,721,183.65
  5. Step 5: Solve for x
    x = 12,721,183.65/3,922.92
  6. Step 6: Final answer
    x = 3,242.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.