Home / 1,151.24-1,728.52-1,008.68

Finding the Fourth Proportional to 1,151.24, 1,728.52 and 1,008.68

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Solution

The fourth proportional to 1,151.24, 1,728.52 and 1,008.68 is: 1,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.24 : 1,728.52 = 1,008.68 : x
  2. Step 2: Convert to fraction form
    1,151.24/1,728.52 = 1,008.68/x
  3. Step 3: Cross multiply
    1,151.24x = 1,728.52 × 1,008.68
  4. Step 4: Simplify right side
    1,151.24x = 1,743,523.55
  5. Step 5: Solve for x
    x = 1,743,523.55/1,151.24
  6. Step 6: Final answer
    x = 1,514.47

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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.