Home / 1,086.89-1,629.19-356.27

Finding the Fourth Proportional to 1,086.89, 1,629.19 and 356.27

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Solution

The fourth proportional to 1,086.89, 1,629.19 and 356.27 is: 534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.89 : 1,629.19 = 356.27 : x
  2. Step 2: Convert to fraction form
    1,086.89/1,629.19 = 356.27/x
  3. Step 3: Cross multiply
    1,086.89x = 1,629.19 × 356.27
  4. Step 4: Simplify right side
    1,086.89x = 580,434.70
  5. Step 5: Solve for x
    x = 580,434.70/1,086.89
  6. Step 6: Final answer
    x = 534.03

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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.