Home / 7,945.25-11,910.13-3,784.15

Finding the Fourth Proportional to 7,945.25, 11,910.13 and 3,784.15

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Solution

The fourth proportional to 7,945.25, 11,910.13 and 3,784.15 is: 5,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.25 : 11,910.13 = 3,784.15 : x
  2. Step 2: Convert to fraction form
    7,945.25/11,910.13 = 3,784.15/x
  3. Step 3: Cross multiply
    7,945.25x = 11,910.13 × 3,784.15
  4. Step 4: Simplify right side
    7,945.25x = 45,069,639.97
  5. Step 5: Solve for x
    x = 45,069,639.97/7,945.25
  6. Step 6: Final answer
    x = 5,672.53

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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.