Home / 1,222.27-1,833.19-356.38

Finding the Fourth Proportional to 1,222.27, 1,833.19 and 356.38

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Solution

The fourth proportional to 1,222.27, 1,833.19 and 356.38 is: 534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.27 : 1,833.19 = 356.38 : x
  2. Step 2: Convert to fraction form
    1,222.27/1,833.19 = 356.38/x
  3. Step 3: Cross multiply
    1,222.27x = 1,833.19 × 356.38
  4. Step 4: Simplify right side
    1,222.27x = 653,312.25
  5. Step 5: Solve for x
    x = 653,312.25/1,222.27
  6. Step 6: Final answer
    x = 534.51

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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.