Home / 3,942.32-5,911.81-2,162.93

Finding the Fourth Proportional to 3,942.32, 5,911.81 and 2,162.93

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Solution

The fourth proportional to 3,942.32, 5,911.81 and 2,162.93 is: 3,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.32 : 5,911.81 = 2,162.93 : x
  2. Step 2: Convert to fraction form
    3,942.32/5,911.81 = 2,162.93/x
  3. Step 3: Cross multiply
    3,942.32x = 5,911.81 × 2,162.93
  4. Step 4: Simplify right side
    3,942.32x = 12,786,796.24
  5. Step 5: Solve for x
    x = 12,786,796.24/3,942.32
  6. Step 6: Final answer
    x = 3,243.47

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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.