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Finding the Fourth Proportional to 6,844.20, 10,250.10 and 4,219.80

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Solution

The fourth proportional to 6,844.20, 10,250.10 and 4,219.80 is: 6,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,844.20 : 10,250.10 = 4,219.80 : x
  2. Step 2: Convert to fraction form
    6,844.20/10,250.10 = 4,219.80/x
  3. Step 3: Cross multiply
    6,844.20x = 10,250.10 × 4,219.80
  4. Step 4: Simplify right side
    6,844.20x = 43,253,371.98
  5. Step 5: Solve for x
    x = 43,253,371.98/6,844.20
  6. Step 6: Final answer
    x = 6,319.71

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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.