Home / 5,413.15-8,120.33-2,250.25

Finding the Fourth Proportional to 5,413.15, 8,120.33 and 2,250.25

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Solution

The fourth proportional to 5,413.15, 8,120.33 and 2,250.25 is: 3,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.15 : 8,120.33 = 2,250.25 : x
  2. Step 2: Convert to fraction form
    5,413.15/8,120.33 = 2,250.25/x
  3. Step 3: Cross multiply
    5,413.15x = 8,120.33 × 2,250.25
  4. Step 4: Simplify right side
    5,413.15x = 18,272,743.14
  5. Step 5: Solve for x
    x = 18,272,743.14/5,413.15
  6. Step 6: Final answer
    x = 3,375.62

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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.