Home / 7,945.16-11,917.82-2,398.55

Finding the Fourth Proportional to 7,945.16, 11,917.82 and 2,398.55

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Solution

The fourth proportional to 7,945.16, 11,917.82 and 2,398.55 is: 3,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.16 : 11,917.82 = 2,398.55 : x
  2. Step 2: Convert to fraction form
    7,945.16/11,917.82 = 2,398.55/x
  3. Step 3: Cross multiply
    7,945.16x = 11,917.82 × 2,398.55
  4. Step 4: Simplify right side
    7,945.16x = 28,585,487.16
  5. Step 5: Solve for x
    x = 28,585,487.16/7,945.16
  6. Step 6: Final answer
    x = 3,597.85

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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.