Home / 2,217.99-3,318.64-1,325.22

Finding the Fourth Proportional to 2,217.99, 3,318.64 and 1,325.22

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Solution

The fourth proportional to 2,217.99, 3,318.64 and 1,325.22 is: 1,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.99 : 3,318.64 = 1,325.22 : x
  2. Step 2: Convert to fraction form
    2,217.99/3,318.64 = 1,325.22/x
  3. Step 3: Cross multiply
    2,217.99x = 3,318.64 × 1,325.22
  4. Step 4: Simplify right side
    2,217.99x = 4,397,912.34
  5. Step 5: Solve for x
    x = 4,397,912.34/2,217.99
  6. Step 6: Final answer
    x = 1,982.83

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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.