Home / 5,413.16-8,121.09-1,517.55

Finding the Fourth Proportional to 5,413.16, 8,121.09 and 1,517.55

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Solution

The fourth proportional to 5,413.16, 8,121.09 and 1,517.55 is: 2,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.16 : 8,121.09 = 1,517.55 : x
  2. Step 2: Convert to fraction form
    5,413.16/8,121.09 = 1,517.55/x
  3. Step 3: Cross multiply
    5,413.16x = 8,121.09 × 1,517.55
  4. Step 4: Simplify right side
    5,413.16x = 12,324,160.13
  5. Step 5: Solve for x
    x = 12,324,160.13/5,413.16
  6. Step 6: Final answer
    x = 2,276.71

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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.