Home / 3,822.80-5,734.20-1,874.60

Finding the Fourth Proportional to 3,822.80, 5,734.20 and 1,874.60

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Solution

The fourth proportional to 3,822.80, 5,734.20 and 1,874.60 is: 2,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.80 : 5,734.20 = 1,874.60 : x
  2. Step 2: Convert to fraction form
    3,822.80/5,734.20 = 1,874.60/x
  3. Step 3: Cross multiply
    3,822.80x = 5,734.20 × 1,874.60
  4. Step 4: Simplify right side
    3,822.80x = 10,749,331.32
  5. Step 5: Solve for x
    x = 10,749,331.32/3,822.80
  6. Step 6: Final answer
    x = 2,811.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.