Home / 1,942.24-2,682.56-1,755.68

Finding the Fourth Proportional to 1,942.24, 2,682.56 and 1,755.68

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Solution

The fourth proportional to 1,942.24, 2,682.56 and 1,755.68 is: 2,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.24 : 2,682.56 = 1,755.68 : x
  2. Step 2: Convert to fraction form
    1,942.24/2,682.56 = 1,755.68/x
  3. Step 3: Cross multiply
    1,942.24x = 2,682.56 × 1,755.68
  4. Step 4: Simplify right side
    1,942.24x = 4,709,716.94
  5. Step 5: Solve for x
    x = 4,709,716.94/1,942.24
  6. Step 6: Final answer
    x = 2,424.89

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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.