Home / 6,824.20-10,233.90-3,128.20

Finding the Fourth Proportional to 6,824.20, 10,233.90 and 3,128.20

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Solution

The fourth proportional to 6,824.20, 10,233.90 and 3,128.20 is: 4,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.20 : 10,233.90 = 3,128.20 : x
  2. Step 2: Convert to fraction form
    6,824.20/10,233.90 = 3,128.20/x
  3. Step 3: Cross multiply
    6,824.20x = 10,233.90 × 3,128.20
  4. Step 4: Simplify right side
    6,824.20x = 32,013,685.98
  5. Step 5: Solve for x
    x = 32,013,685.98/6,824.20
  6. Step 6: Final answer
    x = 4,691.20

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1.5x scale

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.