Home / 7,926.44-11,890.32-2,661.20

Finding the Fourth Proportional to 7,926.44, 11,890.32 and 2,661.20

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Solution

The fourth proportional to 7,926.44, 11,890.32 and 2,661.20 is: 3,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.44 : 11,890.32 = 2,661.20 : x
  2. Step 2: Convert to fraction form
    7,926.44/11,890.32 = 2,661.20/x
  3. Step 3: Cross multiply
    7,926.44x = 11,890.32 × 2,661.20
  4. Step 4: Simplify right side
    7,926.44x = 31,642,519.58
  5. Step 5: Solve for x
    x = 31,642,519.58/7,926.44
  6. Step 6: Final answer
    x = 3,992.02

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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.