Home / 2,682.87-3,698.46-1,935.65

Finding the Fourth Proportional to 2,682.87, 3,698.46 and 1,935.65

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Solution

The fourth proportional to 2,682.87, 3,698.46 and 1,935.65 is: 2,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.87 : 3,698.46 = 1,935.65 : x
  2. Step 2: Convert to fraction form
    2,682.87/3,698.46 = 1,935.65/x
  3. Step 3: Cross multiply
    2,682.87x = 3,698.46 × 1,935.65
  4. Step 4: Simplify right side
    2,682.87x = 7,158,912.54
  5. Step 5: Solve for x
    x = 7,158,912.54/2,682.87
  6. Step 6: Final answer
    x = 2,668.38

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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.