Home / 2,109.22-3,165.41-794.26

Finding the Fourth Proportional to 2,109.22, 3,165.41 and 794.26

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Solution

The fourth proportional to 2,109.22, 3,165.41 and 794.26 is: 1,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.22 : 3,165.41 = 794.26 : x
  2. Step 2: Convert to fraction form
    2,109.22/3,165.41 = 794.26/x
  3. Step 3: Cross multiply
    2,109.22x = 3,165.41 × 794.26
  4. Step 4: Simplify right side
    2,109.22x = 2,514,138.75
  5. Step 5: Solve for x
    x = 2,514,138.75/2,109.22
  6. Step 6: Final answer
    x = 1,191.98

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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.