Home / 3,198.70-4,413.34-1,872.73

Finding the Fourth Proportional to 3,198.70, 4,413.34 and 1,872.73

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Solution

The fourth proportional to 3,198.70, 4,413.34 and 1,872.73 is: 2,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.70 : 4,413.34 = 1,872.73 : x
  2. Step 2: Convert to fraction form
    3,198.70/4,413.34 = 1,872.73/x
  3. Step 3: Cross multiply
    3,198.70x = 4,413.34 × 1,872.73
  4. Step 4: Simplify right side
    3,198.70x = 8,264,994.22
  5. Step 5: Solve for x
    x = 8,264,994.22/3,198.70
  6. Step 6: Final answer
    x = 2,583.86

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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.