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Finding the Fourth Proportional to 6,662.19, 9,999.77 and 3,201.87

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Solution

The fourth proportional to 6,662.19, 9,999.77 and 3,201.87 is: 4,805.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.19 : 9,999.77 = 3,201.87 : x
  2. Step 2: Convert to fraction form
    6,662.19/9,999.77 = 3,201.87/x
  3. Step 3: Cross multiply
    6,662.19x = 9,999.77 × 3,201.87
  4. Step 4: Simplify right side
    6,662.19x = 32,017,947.56
  5. Step 5: Solve for x
    x = 32,017,947.56/6,662.19
  6. Step 6: Final answer
    x = 4,805.92

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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.