Home / 3,198.22-4,413.40-1,781.83

Finding the Fourth Proportional to 3,198.22, 4,413.40 and 1,781.83

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Solution

The fourth proportional to 3,198.22, 4,413.40 and 1,781.83 is: 2,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.22 : 4,413.40 = 1,781.83 : x
  2. Step 2: Convert to fraction form
    3,198.22/4,413.40 = 1,781.83/x
  3. Step 3: Cross multiply
    3,198.22x = 4,413.40 × 1,781.83
  4. Step 4: Simplify right side
    3,198.22x = 7,863,928.52
  5. Step 5: Solve for x
    x = 7,863,928.52/3,198.22
  6. Step 6: Final answer
    x = 2,458.85

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1.5x scale

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.