Home / 3,922.88-5,413.57-2,351.88

Finding the Fourth Proportional to 3,922.88, 5,413.57 and 2,351.88

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Solution

The fourth proportional to 3,922.88, 5,413.57 and 2,351.88 is: 3,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.88 : 5,413.57 = 2,351.88 : x
  2. Step 2: Convert to fraction form
    3,922.88/5,413.57 = 2,351.88/x
  3. Step 3: Cross multiply
    3,922.88x = 5,413.57 × 2,351.88
  4. Step 4: Simplify right side
    3,922.88x = 12,732,061.13
  5. Step 5: Solve for x
    x = 12,732,061.13/3,922.88
  6. Step 6: Final answer
    x = 3,245.59

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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.