Home / 7,679.61-11,525.55-3,982.89

Finding the Fourth Proportional to 7,679.61, 11,525.55 and 3,982.89

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Solution

The fourth proportional to 7,679.61, 11,525.55 and 3,982.89 is: 5,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.61 : 11,525.55 = 3,982.89 : x
  2. Step 2: Convert to fraction form
    7,679.61/11,525.55 = 3,982.89/x
  3. Step 3: Cross multiply
    7,679.61x = 11,525.55 × 3,982.89
  4. Step 4: Simplify right side
    7,679.61x = 45,904,997.84
  5. Step 5: Solve for x
    x = 45,904,997.84/7,679.61
  6. Step 6: Final answer
    x = 5,977.52

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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.