Home / 8,781.22-13,169.86-2,539.84

Finding the Fourth Proportional to 8,781.22, 13,169.86 and 2,539.84

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Solution

The fourth proportional to 8,781.22, 13,169.86 and 2,539.84 is: 3,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.22 : 13,169.86 = 2,539.84 : x
  2. Step 2: Convert to fraction form
    8,781.22/13,169.86 = 2,539.84/x
  3. Step 3: Cross multiply
    8,781.22x = 13,169.86 × 2,539.84
  4. Step 4: Simplify right side
    8,781.22x = 33,449,324.52
  5. Step 5: Solve for x
    x = 33,449,324.52/8,781.22
  6. Step 6: Final answer
    x = 3,809.19

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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.