Home / 2,217.89-3,327.66-1,178.66

Finding the Fourth Proportional to 2,217.89, 3,327.66 and 1,178.66

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Solution

The fourth proportional to 2,217.89, 3,327.66 and 1,178.66 is: 1,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.89 : 3,327.66 = 1,178.66 : x
  2. Step 2: Convert to fraction form
    2,217.89/3,327.66 = 1,178.66/x
  3. Step 3: Cross multiply
    2,217.89x = 3,327.66 × 1,178.66
  4. Step 4: Simplify right side
    2,217.89x = 3,922,163.10
  5. Step 5: Solve for x
    x = 3,922,163.10/2,217.89
  6. Step 6: Final answer
    x = 1,768.42

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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.