Home / 3,414.24-5,120.80-1,222.64

Finding the Fourth Proportional to 3,414.24, 5,120.80 and 1,222.64

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Solution

The fourth proportional to 3,414.24, 5,120.80 and 1,222.64 is: 1,833.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.24 : 5,120.80 = 1,222.64 : x
  2. Step 2: Convert to fraction form
    3,414.24/5,120.80 = 1,222.64/x
  3. Step 3: Cross multiply
    3,414.24x = 5,120.80 × 1,222.64
  4. Step 4: Simplify right side
    3,414.24x = 6,260,894.91
  5. Step 5: Solve for x
    x = 6,260,894.91/3,414.24
  6. Step 6: Final answer
    x = 1,833.76

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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.