Home / 1,942.20-2,682.15-1,235.37

Finding the Fourth Proportional to 1,942.20, 2,682.15 and 1,235.37

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Solution

The fourth proportional to 1,942.20, 2,682.15 and 1,235.37 is: 1,706.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.20 : 2,682.15 = 1,235.37 : x
  2. Step 2: Convert to fraction form
    1,942.20/2,682.15 = 1,235.37/x
  3. Step 3: Cross multiply
    1,942.20x = 2,682.15 × 1,235.37
  4. Step 4: Simplify right side
    1,942.20x = 3,313,453.07
  5. Step 5: Solve for x
    x = 3,313,453.07/1,942.20
  6. Step 6: Final answer
    x = 1,706.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.