Home / 7,964.12-11,935.91-3,278.49

Finding the Fourth Proportional to 7,964.12, 11,935.91 and 3,278.49

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Solution

The fourth proportional to 7,964.12, 11,935.91 and 3,278.49 is: 4,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.12 : 11,935.91 = 3,278.49 : x
  2. Step 2: Convert to fraction form
    7,964.12/11,935.91 = 3,278.49/x
  3. Step 3: Cross multiply
    7,964.12x = 11,935.91 × 3,278.49
  4. Step 4: Simplify right side
    7,964.12x = 39,131,745.18
  5. Step 5: Solve for x
    x = 39,131,745.18/7,964.12
  6. Step 6: Final answer
    x = 4,913.51

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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.