Home / 7,781.09-11,672.22-2,234.39

Finding the Fourth Proportional to 7,781.09, 11,672.22 and 2,234.39

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Solution

The fourth proportional to 7,781.09, 11,672.22 and 2,234.39 is: 3,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.09 : 11,672.22 = 2,234.39 : x
  2. Step 2: Convert to fraction form
    7,781.09/11,672.22 = 2,234.39/x
  3. Step 3: Cross multiply
    7,781.09x = 11,672.22 × 2,234.39
  4. Step 4: Simplify right side
    7,781.09x = 26,080,291.65
  5. Step 5: Solve for x
    x = 26,080,291.65/7,781.09
  6. Step 6: Final answer
    x = 3,351.75

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1.5x scale

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.