Home / 7,908.62-11,864.57-3,228.65

Finding the Fourth Proportional to 7,908.62, 11,864.57 and 3,228.65

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Solution

The fourth proportional to 7,908.62, 11,864.57 and 3,228.65 is: 4,843.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.62 : 11,864.57 = 3,228.65 : x
  2. Step 2: Convert to fraction form
    7,908.62/11,864.57 = 3,228.65/x
  3. Step 3: Cross multiply
    7,908.62x = 11,864.57 × 3,228.65
  4. Step 4: Simplify right side
    7,908.62x = 38,306,468.46
  5. Step 5: Solve for x
    x = 38,306,468.46/7,908.62
  6. Step 6: Final answer
    x = 4,843.64

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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.