Home / 1,935.69-2,669.92-1,640.44

Finding the Fourth Proportional to 1,935.69, 2,669.92 and 1,640.44

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Solution

The fourth proportional to 1,935.69, 2,669.92 and 1,640.44 is: 2,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.69 : 2,669.92 = 1,640.44 : x
  2. Step 2: Convert to fraction form
    1,935.69/2,669.92 = 1,640.44/x
  3. Step 3: Cross multiply
    1,935.69x = 2,669.92 × 1,640.44
  4. Step 4: Simplify right side
    1,935.69x = 4,379,843.56
  5. Step 5: Solve for x
    x = 4,379,843.56/1,935.69
  6. Step 6: Final answer
    x = 2,262.68

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1.5x scale

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.