Home / 1,960.91-2,942.10-1,181.46

Finding the Fourth Proportional to 1,960.91, 2,942.10 and 1,181.46

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Solution

The fourth proportional to 1,960.91, 2,942.10 and 1,181.46 is: 1,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.91 : 2,942.10 = 1,181.46 : x
  2. Step 2: Convert to fraction form
    1,960.91/2,942.10 = 1,181.46/x
  3. Step 3: Cross multiply
    1,960.91x = 2,942.10 × 1,181.46
  4. Step 4: Simplify right side
    1,960.91x = 3,475,972.90
  5. Step 5: Solve for x
    x = 3,475,972.90/1,960.91
  6. Step 6: Final answer
    x = 1,772.63

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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.