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Finding the Fourth Proportional to 6,447.09, 9,660.83 and 2,935.11

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Solution

The fourth proportional to 6,447.09, 9,660.83 and 2,935.11 is: 4,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.09 : 9,660.83 = 2,935.11 : x
  2. Step 2: Convert to fraction form
    6,447.09/9,660.83 = 2,935.11/x
  3. Step 3: Cross multiply
    6,447.09x = 9,660.83 × 2,935.11
  4. Step 4: Simplify right side
    6,447.09x = 28,355,584.07
  5. Step 5: Solve for x
    x = 28,355,584.07/6,447.09
  6. Step 6: Final answer
    x = 4,398.20

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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.