Home / 3,450.48-5,174.76-1,398

Finding the Fourth Proportional to 3,450.48, 5,174.76 and 1,398

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Solution

The fourth proportional to 3,450.48, 5,174.76 and 1,398 is: 2,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.48 : 5,174.76 = 1,398 : x
  2. Step 2: Convert to fraction form
    3,450.48/5,174.76 = 1,398/x
  3. Step 3: Cross multiply
    3,450.48x = 5,174.76 × 1,398
  4. Step 4: Simplify right side
    3,450.48x = 7,234,314.48
  5. Step 5: Solve for x
    x = 7,234,314.48/3,450.48
  6. Step 6: Final answer
    x = 2,096.61

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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.