Home / 1,151.30-1,727.18-329.58

Finding the Fourth Proportional to 1,151.30, 1,727.18 and 329.58

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Solution

The fourth proportional to 1,151.30, 1,727.18 and 329.58 is: 494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.30 : 1,727.18 = 329.58 : x
  2. Step 2: Convert to fraction form
    1,151.30/1,727.18 = 329.58/x
  3. Step 3: Cross multiply
    1,151.30x = 1,727.18 × 329.58
  4. Step 4: Simplify right side
    1,151.30x = 569,243.98
  5. Step 5: Solve for x
    x = 569,243.98/1,151.30
  6. Step 6: Final answer
    x = 494.44

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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.