Home / 3,964.68-5,468.49-3,218.64

Finding the Fourth Proportional to 3,964.68, 5,468.49 and 3,218.64

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Solution

The fourth proportional to 3,964.68, 5,468.49 and 3,218.64 is: 4,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.68 : 5,468.49 = 3,218.64 : x
  2. Step 2: Convert to fraction form
    3,964.68/5,468.49 = 3,218.64/x
  3. Step 3: Cross multiply
    3,964.68x = 5,468.49 × 3,218.64
  4. Step 4: Simplify right side
    3,964.68x = 17,601,100.65
  5. Step 5: Solve for x
    x = 17,601,100.65/3,964.68
  6. Step 6: Final answer
    x = 4,439.48

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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.