Home / 6,639.75-9,163.94-3,846.87

Finding the Fourth Proportional to 6,639.75, 9,163.94 and 3,846.87

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Solution

The fourth proportional to 6,639.75, 9,163.94 and 3,846.87 is: 5,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.75 : 9,163.94 = 3,846.87 : x
  2. Step 2: Convert to fraction form
    6,639.75/9,163.94 = 3,846.87/x
  3. Step 3: Cross multiply
    6,639.75x = 9,163.94 × 3,846.87
  4. Step 4: Simplify right side
    6,639.75x = 35,252,466.63
  5. Step 5: Solve for x
    x = 35,252,466.63/6,639.75
  6. Step 6: Final answer
    x = 5,309.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.