Home / 3,107.28-4,261.77-2,757.36

Finding the Fourth Proportional to 3,107.28, 4,261.77 and 2,757.36

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Solution

The fourth proportional to 3,107.28, 4,261.77 and 2,757.36 is: 3,781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.28 : 4,261.77 = 2,757.36 : x
  2. Step 2: Convert to fraction form
    3,107.28/4,261.77 = 2,757.36/x
  3. Step 3: Cross multiply
    3,107.28x = 4,261.77 × 2,757.36
  4. Step 4: Simplify right side
    3,107.28x = 11,751,234.13
  5. Step 5: Solve for x
    x = 11,751,234.13/3,107.28
  6. Step 6: Final answer
    x = 3,781.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.