Home / 3,966.72-5,474.40-2,198.49

Finding the Fourth Proportional to 3,966.72, 5,474.40 and 2,198.49

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Solution

The fourth proportional to 3,966.72, 5,474.40 and 2,198.49 is: 3,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.72 : 5,474.40 = 2,198.49 : x
  2. Step 2: Convert to fraction form
    3,966.72/5,474.40 = 2,198.49/x
  3. Step 3: Cross multiply
    3,966.72x = 5,474.40 × 2,198.49
  4. Step 4: Simplify right side
    3,966.72x = 12,035,413.66
  5. Step 5: Solve for x
    x = 12,035,413.66/3,966.72
  6. Step 6: Final answer
    x = 3,034.10

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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.