Home / 7,660.46-11,487.72-2,979.85

Finding the Fourth Proportional to 7,660.46, 11,487.72 and 2,979.85

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Solution

The fourth proportional to 7,660.46, 11,487.72 and 2,979.85 is: 4,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.46 : 11,487.72 = 2,979.85 : x
  2. Step 2: Convert to fraction form
    7,660.46/11,487.72 = 2,979.85/x
  3. Step 3: Cross multiply
    7,660.46x = 11,487.72 × 2,979.85
  4. Step 4: Simplify right side
    7,660.46x = 34,231,653.72
  5. Step 5: Solve for x
    x = 34,231,653.72/7,660.46
  6. Step 6: Final answer
    x = 4,468.61

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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.