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Finding the Fourth Proportional to 6,820.80, 10,227.84 and 2,203.20

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Solution

The fourth proportional to 6,820.80, 10,227.84 and 2,203.20 is: 3,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.80 : 10,227.84 = 2,203.20 : x
  2. Step 2: Convert to fraction form
    6,820.80/10,227.84 = 2,203.20/x
  3. Step 3: Cross multiply
    6,820.80x = 10,227.84 × 2,203.20
  4. Step 4: Simplify right side
    6,820.80x = 22,533,977.09
  5. Step 5: Solve for x
    x = 22,533,977.09/6,820.80
  6. Step 6: Final answer
    x = 3,303.71

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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.