Home / 7,639.69-11,456.46-2,706.64

Finding the Fourth Proportional to 7,639.69, 11,456.46 and 2,706.64

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Solution

The fourth proportional to 7,639.69, 11,456.46 and 2,706.64 is: 4,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.69 : 11,456.46 = 2,706.64 : x
  2. Step 2: Convert to fraction form
    7,639.69/11,456.46 = 2,706.64/x
  3. Step 3: Cross multiply
    7,639.69x = 11,456.46 × 2,706.64
  4. Step 4: Simplify right side
    7,639.69x = 31,008,524.09
  5. Step 5: Solve for x
    x = 31,008,524.09/7,639.69
  6. Step 6: Final answer
    x = 4,058.87

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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.