Home / 2,209.22-3,315.75-1,169.96

Finding the Fourth Proportional to 2,209.22, 3,315.75 and 1,169.96

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Solution

The fourth proportional to 2,209.22, 3,315.75 and 1,169.96 is: 1,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.22 : 3,315.75 = 1,169.96 : x
  2. Step 2: Convert to fraction form
    2,209.22/3,315.75 = 1,169.96/x
  3. Step 3: Cross multiply
    2,209.22x = 3,315.75 × 1,169.96
  4. Step 4: Simplify right side
    2,209.22x = 3,879,289.02
  5. Step 5: Solve for x
    x = 3,879,289.02/2,209.22
  6. Step 6: Final answer
    x = 1,755.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.