Home / 3,922.84-5,413.58-2,351

Finding the Fourth Proportional to 3,922.84, 5,413.58 and 2,351

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Solution

The fourth proportional to 3,922.84, 5,413.58 and 2,351 is: 3,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.84 : 5,413.58 = 2,351 : x
  2. Step 2: Convert to fraction form
    3,922.84/5,413.58 = 2,351/x
  3. Step 3: Cross multiply
    3,922.84x = 5,413.58 × 2,351
  4. Step 4: Simplify right side
    3,922.84x = 12,727,326.58
  5. Step 5: Solve for x
    x = 12,727,326.58/3,922.84
  6. Step 6: Final answer
    x = 3,244.42

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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.