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Finding the Fourth Proportional to 2,266.14, 3,399.21 and 728.22

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Solution

The fourth proportional to 2,266.14, 3,399.21 and 728.22 is: 1,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.14 : 3,399.21 = 728.22 : x
  2. Step 2: Convert to fraction form
    2,266.14/3,399.21 = 728.22/x
  3. Step 3: Cross multiply
    2,266.14x = 3,399.21 × 728.22
  4. Step 4: Simplify right side
    2,266.14x = 2,475,372.71
  5. Step 5: Solve for x
    x = 2,475,372.71/2,266.14
  6. Step 6: Final answer
    x = 1,092.33

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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.