Home / 3,198.29-4,413.24-1,781.63

Finding the Fourth Proportional to 3,198.29, 4,413.24 and 1,781.63

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Solution

The fourth proportional to 3,198.29, 4,413.24 and 1,781.63 is: 2,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.29 : 4,413.24 = 1,781.63 : x
  2. Step 2: Convert to fraction form
    3,198.29/4,413.24 = 1,781.63/x
  3. Step 3: Cross multiply
    3,198.29x = 4,413.24 × 1,781.63
  4. Step 4: Simplify right side
    3,198.29x = 7,862,738.72
  5. Step 5: Solve for x
    x = 7,862,738.72/3,198.29
  6. Step 6: Final answer
    x = 2,458.42

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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.