Home / 3,910.75-5,863.53-2,156.60

Finding the Fourth Proportional to 3,910.75, 5,863.53 and 2,156.60

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Solution

The fourth proportional to 3,910.75, 5,863.53 and 2,156.60 is: 3,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.75 : 5,863.53 = 2,156.60 : x
  2. Step 2: Convert to fraction form
    3,910.75/5,863.53 = 2,156.60/x
  3. Step 3: Cross multiply
    3,910.75x = 5,863.53 × 2,156.60
  4. Step 4: Simplify right side
    3,910.75x = 12,645,311.54
  5. Step 5: Solve for x
    x = 12,645,311.54/3,910.75
  6. Step 6: Final answer
    x = 3,233.48

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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.