Home / 7,781.22-11,669.27-2,514.99

Finding the Fourth Proportional to 7,781.22, 11,669.27 and 2,514.99

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Solution

The fourth proportional to 7,781.22, 11,669.27 and 2,514.99 is: 3,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.22 : 11,669.27 = 2,514.99 : x
  2. Step 2: Convert to fraction form
    7,781.22/11,669.27 = 2,514.99/x
  3. Step 3: Cross multiply
    7,781.22x = 11,669.27 × 2,514.99
  4. Step 4: Simplify right side
    7,781.22x = 29,348,084.78
  5. Step 5: Solve for x
    x = 29,348,084.78/7,781.22
  6. Step 6: Final answer
    x = 3,771.66

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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.