Home / 3,939.88-5,435.94-2,366.86

Finding the Fourth Proportional to 3,939.88, 5,435.94 and 2,366.86

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Solution

The fourth proportional to 3,939.88, 5,435.94 and 2,366.86 is: 3,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.88 : 5,435.94 = 2,366.86 : x
  2. Step 2: Convert to fraction form
    3,939.88/5,435.94 = 2,366.86/x
  3. Step 3: Cross multiply
    3,939.88x = 5,435.94 × 2,366.86
  4. Step 4: Simplify right side
    3,939.88x = 12,866,108.95
  5. Step 5: Solve for x
    x = 12,866,108.95/3,939.88
  6. Step 6: Final answer
    x = 3,265.61

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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.