Home / 3,274.38-4,912.47-1,425.65

Finding the Fourth Proportional to 3,274.38, 4,912.47 and 1,425.65

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Solution

The fourth proportional to 3,274.38, 4,912.47 and 1,425.65 is: 2,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.38 : 4,912.47 = 1,425.65 : x
  2. Step 2: Convert to fraction form
    3,274.38/4,912.47 = 1,425.65/x
  3. Step 3: Cross multiply
    3,274.38x = 4,912.47 × 1,425.65
  4. Step 4: Simplify right side
    3,274.38x = 7,003,438.29
  5. Step 5: Solve for x
    x = 7,003,438.29/3,274.38
  6. Step 6: Final answer
    x = 2,138.86

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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.