Home / 3,198.37-4,413.68-1,872.09

Finding the Fourth Proportional to 3,198.37, 4,413.68 and 1,872.09

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Solution

The fourth proportional to 3,198.37, 4,413.68 and 1,872.09 is: 2,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.37 : 4,413.68 = 1,872.09 : x
  2. Step 2: Convert to fraction form
    3,198.37/4,413.68 = 1,872.09/x
  3. Step 3: Cross multiply
    3,198.37x = 4,413.68 × 1,872.09
  4. Step 4: Simplify right side
    3,198.37x = 8,262,788.80
  5. Step 5: Solve for x
    x = 8,262,788.80/3,198.37
  6. Step 6: Final answer
    x = 2,583.43

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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.