Home / 2,217.34-3,059.82-1,222.72

Finding the Fourth Proportional to 2,217.34, 3,059.82 and 1,222.72

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Solution

The fourth proportional to 2,217.34, 3,059.82 and 1,222.72 is: 1,687.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.34 : 3,059.82 = 1,222.72 : x
  2. Step 2: Convert to fraction form
    2,217.34/3,059.82 = 1,222.72/x
  3. Step 3: Cross multiply
    2,217.34x = 3,059.82 × 1,222.72
  4. Step 4: Simplify right side
    2,217.34x = 3,741,303.11
  5. Step 5: Solve for x
    x = 3,741,303.11/2,217.34
  6. Step 6: Final answer
    x = 1,687.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.