Home / 7,786.62-11,682.90-2,859.66

Finding the Fourth Proportional to 7,786.62, 11,682.90 and 2,859.66

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Solution

The fourth proportional to 7,786.62, 11,682.90 and 2,859.66 is: 4,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.62 : 11,682.90 = 2,859.66 : x
  2. Step 2: Convert to fraction form
    7,786.62/11,682.90 = 2,859.66/x
  3. Step 3: Cross multiply
    7,786.62x = 11,682.90 × 2,859.66
  4. Step 4: Simplify right side
    7,786.62x = 33,409,121.81
  5. Step 5: Solve for x
    x = 33,409,121.81/7,786.62
  6. Step 6: Final answer
    x = 4,290.58

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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.