Home / 1,144.28-1,716.96-1,087.94

Finding the Fourth Proportional to 1,144.28, 1,716.96 and 1,087.94

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Solution

The fourth proportional to 1,144.28, 1,716.96 and 1,087.94 is: 1,632.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.28 : 1,716.96 = 1,087.94 : x
  2. Step 2: Convert to fraction form
    1,144.28/1,716.96 = 1,087.94/x
  3. Step 3: Cross multiply
    1,144.28x = 1,716.96 × 1,087.94
  4. Step 4: Simplify right side
    1,144.28x = 1,867,949.46
  5. Step 5: Solve for x
    x = 1,867,949.46/1,144.28
  6. Step 6: Final answer
    x = 1,632.42

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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.