Home / 3,933.88-5,429.23-2,255.29

Finding the Fourth Proportional to 3,933.88, 5,429.23 and 2,255.29

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Solution

The fourth proportional to 3,933.88, 5,429.23 and 2,255.29 is: 3,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.88 : 5,429.23 = 2,255.29 : x
  2. Step 2: Convert to fraction form
    3,933.88/5,429.23 = 2,255.29/x
  3. Step 3: Cross multiply
    3,933.88x = 5,429.23 × 2,255.29
  4. Step 4: Simplify right side
    3,933.88x = 12,244,455.44
  5. Step 5: Solve for x
    x = 12,244,455.44/3,933.88
  6. Step 6: Final answer
    x = 3,112.56

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1.5x scale

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.