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Finding the Fourth Proportional to 6,642.73, 9,967.99 and 2,945.37

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Solution

The fourth proportional to 6,642.73, 9,967.99 and 2,945.37 is: 4,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.73 : 9,967.99 = 2,945.37 : x
  2. Step 2: Convert to fraction form
    6,642.73/9,967.99 = 2,945.37/x
  3. Step 3: Cross multiply
    6,642.73x = 9,967.99 × 2,945.37
  4. Step 4: Simplify right side
    6,642.73x = 29,359,418.71
  5. Step 5: Solve for x
    x = 29,359,418.71/6,642.73
  6. Step 6: Final answer
    x = 4,419.78

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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.