Home / 5,413.39-8,121.46-1,517.80

Finding the Fourth Proportional to 5,413.39, 8,121.46 and 1,517.80

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Solution

The fourth proportional to 5,413.39, 8,121.46 and 1,517.80 is: 2,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.39 : 8,121.46 = 1,517.80 : x
  2. Step 2: Convert to fraction form
    5,413.39/8,121.46 = 1,517.80/x
  3. Step 3: Cross multiply
    5,413.39x = 8,121.46 × 1,517.80
  4. Step 4: Simplify right side
    5,413.39x = 12,326,756.32
  5. Step 5: Solve for x
    x = 12,326,756.32/5,413.39
  6. Step 6: Final answer
    x = 2,277.08

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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.