Home / 3,911.88-5,397.39-2,338.86

Finding the Fourth Proportional to 3,911.88, 5,397.39 and 2,338.86

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Solution

The fourth proportional to 3,911.88, 5,397.39 and 2,338.86 is: 3,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.88 : 5,397.39 = 2,338.86 : x
  2. Step 2: Convert to fraction form
    3,911.88/5,397.39 = 2,338.86/x
  3. Step 3: Cross multiply
    3,911.88x = 5,397.39 × 2,338.86
  4. Step 4: Simplify right side
    3,911.88x = 12,623,739.58
  5. Step 5: Solve for x
    x = 12,623,739.58/3,911.88
  6. Step 6: Final answer
    x = 3,227.03

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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.