Home / 1,086.33-1,629.46-264.59

Finding the Fourth Proportional to 1,086.33, 1,629.46 and 264.59

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Solution

The fourth proportional to 1,086.33, 1,629.46 and 264.59 is: 396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.33 : 1,629.46 = 264.59 : x
  2. Step 2: Convert to fraction form
    1,086.33/1,629.46 = 264.59/x
  3. Step 3: Cross multiply
    1,086.33x = 1,629.46 × 264.59
  4. Step 4: Simplify right side
    1,086.33x = 431,141.52
  5. Step 5: Solve for x
    x = 431,141.52/1,086.33
  6. Step 6: Final answer
    x = 396.88

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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.