Home / 3,922.53-5,413.10-2,154.23

Finding the Fourth Proportional to 3,922.53, 5,413.10 and 2,154.23

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Solution

The fourth proportional to 3,922.53, 5,413.10 and 2,154.23 is: 2,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.53 : 5,413.10 = 2,154.23 : x
  2. Step 2: Convert to fraction form
    3,922.53/5,413.10 = 2,154.23/x
  3. Step 3: Cross multiply
    3,922.53x = 5,413.10 × 2,154.23
  4. Step 4: Simplify right side
    3,922.53x = 11,661,024.58
  5. Step 5: Solve for x
    x = 11,661,024.58/3,922.53
  6. Step 6: Final answer
    x = 2,972.83

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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.