Home / 7,739.62-11,611.03-3,786.98

Finding the Fourth Proportional to 7,739.62, 11,611.03 and 3,786.98

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Solution

The fourth proportional to 7,739.62, 11,611.03 and 3,786.98 is: 5,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.62 : 11,611.03 = 3,786.98 : x
  2. Step 2: Convert to fraction form
    7,739.62/11,611.03 = 3,786.98/x
  3. Step 3: Cross multiply
    7,739.62x = 11,611.03 × 3,786.98
  4. Step 4: Simplify right side
    7,739.62x = 43,970,738.39
  5. Step 5: Solve for x
    x = 43,970,738.39/7,739.62
  6. Step 6: Final answer
    x = 5,681.25

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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.