Home / 1,942.20-2,911.67-1,612.22

Finding the Fourth Proportional to 1,942.20, 2,911.67 and 1,612.22

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Solution

The fourth proportional to 1,942.20, 2,911.67 and 1,612.22 is: 2,416.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.20 : 2,911.67 = 1,612.22 : x
  2. Step 2: Convert to fraction form
    1,942.20/2,911.67 = 1,612.22/x
  3. Step 3: Cross multiply
    1,942.20x = 2,911.67 × 1,612.22
  4. Step 4: Simplify right side
    1,942.20x = 4,694,229.99
  5. Step 5: Solve for x
    x = 4,694,229.99/1,942.20
  6. Step 6: Final answer
    x = 2,416.97

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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.