Home / 3,922.82-5,413.58-2,154.44

Finding the Fourth Proportional to 3,922.82, 5,413.58 and 2,154.44

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Solution

The fourth proportional to 3,922.82, 5,413.58 and 2,154.44 is: 2,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.82 : 5,413.58 = 2,154.44 : x
  2. Step 2: Convert to fraction form
    3,922.82/5,413.58 = 2,154.44/x
  3. Step 3: Cross multiply
    3,922.82x = 5,413.58 × 2,154.44
  4. Step 4: Simplify right side
    3,922.82x = 11,663,233.30
  5. Step 5: Solve for x
    x = 11,663,233.30/3,922.82
  6. Step 6: Final answer
    x = 2,973.18

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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.