Home / 6,229.78-9,344.64-2,125.78

Finding the Fourth Proportional to 6,229.78, 9,344.64 and 2,125.78

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Solution

The fourth proportional to 6,229.78, 9,344.64 and 2,125.78 is: 3,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,229.78 : 9,344.64 = 2,125.78 : x
  2. Step 2: Convert to fraction form
    6,229.78/9,344.64 = 2,125.78/x
  3. Step 3: Cross multiply
    6,229.78x = 9,344.64 × 2,125.78
  4. Step 4: Simplify right side
    6,229.78x = 19,864,648.82
  5. Step 5: Solve for x
    x = 19,864,648.82/6,229.78
  6. Step 6: Final answer
    x = 3,188.66

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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.