Home / 6,815.31-10,222.85-2,198.31

Finding the Fourth Proportional to 6,815.31, 10,222.85 and 2,198.31

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Solution

The fourth proportional to 6,815.31, 10,222.85 and 2,198.31 is: 3,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.31 : 10,222.85 = 2,198.31 : x
  2. Step 2: Convert to fraction form
    6,815.31/10,222.85 = 2,198.31/x
  3. Step 3: Cross multiply
    6,815.31x = 10,222.85 × 2,198.31
  4. Step 4: Simplify right side
    6,815.31x = 22,472,982.39
  5. Step 5: Solve for x
    x = 22,472,982.39/6,815.31
  6. Step 6: Final answer
    x = 3,297.43

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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.