Home / 2,217.72-3,327.36-985.02

Finding the Fourth Proportional to 2,217.72, 3,327.36 and 985.02

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Solution

The fourth proportional to 2,217.72, 3,327.36 and 985.02 is: 1,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.72 : 3,327.36 = 985.02 : x
  2. Step 2: Convert to fraction form
    2,217.72/3,327.36 = 985.02/x
  3. Step 3: Cross multiply
    2,217.72x = 3,327.36 × 985.02
  4. Step 4: Simplify right side
    2,217.72x = 3,277,516.15
  5. Step 5: Solve for x
    x = 3,277,516.15/2,217.72
  6. Step 6: Final answer
    x = 1,477.88

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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.