Home / 2,207.05-3,311.63-1,329.89

Finding the Fourth Proportional to 2,207.05, 3,311.63 and 1,329.89

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Solution

The fourth proportional to 2,207.05, 3,311.63 and 1,329.89 is: 1,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.05 : 3,311.63 = 1,329.89 : x
  2. Step 2: Convert to fraction form
    2,207.05/3,311.63 = 1,329.89/x
  3. Step 3: Cross multiply
    2,207.05x = 3,311.63 × 1,329.89
  4. Step 4: Simplify right side
    2,207.05x = 4,404,120.82
  5. Step 5: Solve for x
    x = 4,404,120.82/2,207.05
  6. Step 6: Final answer
    x = 1,995.48

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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.