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Finding the Fourth Proportional to 2,257.09, 3,385.55 and 796.21

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Solution

The fourth proportional to 2,257.09, 3,385.55 and 796.21 is: 1,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.09 : 3,385.55 = 796.21 : x
  2. Step 2: Convert to fraction form
    2,257.09/3,385.55 = 796.21/x
  3. Step 3: Cross multiply
    2,257.09x = 3,385.55 × 796.21
  4. Step 4: Simplify right side
    2,257.09x = 2,695,608.77
  5. Step 5: Solve for x
    x = 2,695,608.77/2,257.09
  6. Step 6: Final answer
    x = 1,194.29

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1.5x scale

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.