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Finding the Fourth Proportional to 7,379.66, 11,071.11 and 2,185.94

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Solution

The fourth proportional to 7,379.66, 11,071.11 and 2,185.94 is: 3,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.66 : 11,071.11 = 2,185.94 : x
  2. Step 2: Convert to fraction form
    7,379.66/11,071.11 = 2,185.94/x
  3. Step 3: Cross multiply
    7,379.66x = 11,071.11 × 2,185.94
  4. Step 4: Simplify right side
    7,379.66x = 24,200,782.19
  5. Step 5: Solve for x
    x = 24,200,782.19/7,379.66
  6. Step 6: Final answer
    x = 3,279.39

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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.