Home / 3,922.70-5,413.50-2,350.76

Finding the Fourth Proportional to 3,922.70, 5,413.50 and 2,350.76

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Solution

The fourth proportional to 3,922.70, 5,413.50 and 2,350.76 is: 3,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.70 : 5,413.50 = 2,350.76 : x
  2. Step 2: Convert to fraction form
    3,922.70/5,413.50 = 2,350.76/x
  3. Step 3: Cross multiply
    3,922.70x = 5,413.50 × 2,350.76
  4. Step 4: Simplify right side
    3,922.70x = 12,725,839.26
  5. Step 5: Solve for x
    x = 12,725,839.26/3,922.70
  6. Step 6: Final answer
    x = 3,244.15

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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.