Home / 7,619.06-11,418.57-3,231.09

Finding the Fourth Proportional to 7,619.06, 11,418.57 and 3,231.09

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Solution

The fourth proportional to 7,619.06, 11,418.57 and 3,231.09 is: 4,842.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.06 : 11,418.57 = 3,231.09 : x
  2. Step 2: Convert to fraction form
    7,619.06/11,418.57 = 3,231.09/x
  3. Step 3: Cross multiply
    7,619.06x = 11,418.57 × 3,231.09
  4. Step 4: Simplify right side
    7,619.06x = 36,894,427.34
  5. Step 5: Solve for x
    x = 36,894,427.34/7,619.06
  6. Step 6: Final answer
    x = 4,842.38

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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.