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Finding the Fourth Proportional to 7,653.92, 11,481.31 and 2,389.66

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Solution

The fourth proportional to 7,653.92, 11,481.31 and 2,389.66 is: 3,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.92 : 11,481.31 = 2,389.66 : x
  2. Step 2: Convert to fraction form
    7,653.92/11,481.31 = 2,389.66/x
  3. Step 3: Cross multiply
    7,653.92x = 11,481.31 × 2,389.66
  4. Step 4: Simplify right side
    7,653.92x = 27,436,435.09
  5. Step 5: Solve for x
    x = 27,436,435.09/7,653.92
  6. Step 6: Final answer
    x = 3,584.62

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1.5x scale

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.