Home / 2,391.12-3,589.11-1,608.66

Finding the Fourth Proportional to 2,391.12, 3,589.11 and 1,608.66

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Solution

The fourth proportional to 2,391.12, 3,589.11 and 1,608.66 is: 2,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.12 : 3,589.11 = 1,608.66 : x
  2. Step 2: Convert to fraction form
    2,391.12/3,589.11 = 1,608.66/x
  3. Step 3: Cross multiply
    2,391.12x = 3,589.11 × 1,608.66
  4. Step 4: Simplify right side
    2,391.12x = 5,773,657.69
  5. Step 5: Solve for x
    x = 5,773,657.69/2,391.12
  6. Step 6: Final answer
    x = 2,414.62

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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.