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Finding the Fourth Proportional to 3,879.23, 5,815.94 and 2,413.94

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Solution

The fourth proportional to 3,879.23, 5,815.94 and 2,413.94 is: 3,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.23 : 5,815.94 = 2,413.94 : x
  2. Step 2: Convert to fraction form
    3,879.23/5,815.94 = 2,413.94/x
  3. Step 3: Cross multiply
    3,879.23x = 5,815.94 × 2,413.94
  4. Step 4: Simplify right side
    3,879.23x = 14,039,289.05
  5. Step 5: Solve for x
    x = 14,039,289.05/3,879.23
  6. Step 6: Final answer
    x = 3,619.10

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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.