Home / 3,942.31-5,917.11-1,995.88

Finding the Fourth Proportional to 3,942.31, 5,917.11 and 1,995.88

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Solution

The fourth proportional to 3,942.31, 5,917.11 and 1,995.88 is: 2,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.31 : 5,917.11 = 1,995.88 : x
  2. Step 2: Convert to fraction form
    3,942.31/5,917.11 = 1,995.88/x
  3. Step 3: Cross multiply
    3,942.31x = 5,917.11 × 1,995.88
  4. Step 4: Simplify right side
    3,942.31x = 11,809,841.51
  5. Step 5: Solve for x
    x = 11,809,841.51/3,942.31
  6. Step 6: Final answer
    x = 2,995.67

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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.