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Finding the Fourth Proportional to 6,628.73, 9,945.39 and 3,339.14

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Solution

The fourth proportional to 6,628.73, 9,945.39 and 3,339.14 is: 5,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.73 : 9,945.39 = 3,339.14 : x
  2. Step 2: Convert to fraction form
    6,628.73/9,945.39 = 3,339.14/x
  3. Step 3: Cross multiply
    6,628.73x = 9,945.39 × 3,339.14
  4. Step 4: Simplify right side
    6,628.73x = 33,209,049.56
  5. Step 5: Solve for x
    x = 33,209,049.56/6,628.73
  6. Step 6: Final answer
    x = 5,009.87

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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.