Home / 4,201.38-6,289.92-3,165.78

Finding the Fourth Proportional to 4,201.38, 6,289.92 and 3,165.78

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Solution

The fourth proportional to 4,201.38, 6,289.92 and 3,165.78 is: 4,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.38 : 6,289.92 = 3,165.78 : x
  2. Step 2: Convert to fraction form
    4,201.38/6,289.92 = 3,165.78/x
  3. Step 3: Cross multiply
    4,201.38x = 6,289.92 × 3,165.78
  4. Step 4: Simplify right side
    4,201.38x = 19,912,502.94
  5. Step 5: Solve for x
    x = 19,912,502.94/4,201.38
  6. Step 6: Final answer
    x = 4,739.51

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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.