Home / 4,255.22-6,378.45-3,082.28

Finding the Fourth Proportional to 4,255.22, 6,378.45 and 3,082.28

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Solution

The fourth proportional to 4,255.22, 6,378.45 and 3,082.28 is: 4,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.22 : 6,378.45 = 3,082.28 : x
  2. Step 2: Convert to fraction form
    4,255.22/6,378.45 = 3,082.28/x
  3. Step 3: Cross multiply
    4,255.22x = 6,378.45 × 3,082.28
  4. Step 4: Simplify right side
    4,255.22x = 19,660,121.56
  5. Step 5: Solve for x
    x = 19,660,121.56/4,255.22
  6. Step 6: Final answer
    x = 4,620.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.