Home / 1,022.27-1,529.22-817.25

Finding the Fourth Proportional to 1,022.27, 1,529.22 and 817.25

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Solution

The fourth proportional to 1,022.27, 1,529.22 and 817.25 is: 1,222.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.27 : 1,529.22 = 817.25 : x
  2. Step 2: Convert to fraction form
    1,022.27/1,529.22 = 817.25/x
  3. Step 3: Cross multiply
    1,022.27x = 1,529.22 × 817.25
  4. Step 4: Simplify right side
    1,022.27x = 1,249,755.05
  5. Step 5: Solve for x
    x = 1,249,755.05/1,022.27
  6. Step 6: Final answer
    x = 1,222.53

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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.