Home / 3,974.38-5,484.81-2,205.98

Finding the Fourth Proportional to 3,974.38, 5,484.81 and 2,205.98

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Solution

The fourth proportional to 3,974.38, 5,484.81 and 2,205.98 is: 3,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.38 : 5,484.81 = 2,205.98 : x
  2. Step 2: Convert to fraction form
    3,974.38/5,484.81 = 2,205.98/x
  3. Step 3: Cross multiply
    3,974.38x = 5,484.81 × 2,205.98
  4. Step 4: Simplify right side
    3,974.38x = 12,099,413.43
  5. Step 5: Solve for x
    x = 12,099,413.43/3,974.38
  6. Step 6: Final answer
    x = 3,044.35

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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.