Home / 3,928.24-5,421.27-2,250.18

Finding the Fourth Proportional to 3,928.24, 5,421.27 and 2,250.18

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Solution

The fourth proportional to 3,928.24, 5,421.27 and 2,250.18 is: 3,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.24 : 5,421.27 = 2,250.18 : x
  2. Step 2: Convert to fraction form
    3,928.24/5,421.27 = 2,250.18/x
  3. Step 3: Cross multiply
    3,928.24x = 5,421.27 × 2,250.18
  4. Step 4: Simplify right side
    3,928.24x = 12,198,833.33
  5. Step 5: Solve for x
    x = 12,198,833.33/3,928.24
  6. Step 6: Final answer
    x = 3,105.42

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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.