Home / 2,128.66-3,193.24-794.26

Finding the Fourth Proportional to 2,128.66, 3,193.24 and 794.26

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Solution

The fourth proportional to 2,128.66, 3,193.24 and 794.26 is: 1,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.66 : 3,193.24 = 794.26 : x
  2. Step 2: Convert to fraction form
    2,128.66/3,193.24 = 794.26/x
  3. Step 3: Cross multiply
    2,128.66x = 3,193.24 × 794.26
  4. Step 4: Simplify right side
    2,128.66x = 2,536,262.80
  5. Step 5: Solve for x
    x = 2,536,262.80/2,128.66
  6. Step 6: Final answer
    x = 1,191.48

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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.