Home / 2,688.14-4,028.57-1,997.42

Finding the Fourth Proportional to 2,688.14, 4,028.57 and 1,997.42

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Solution

The fourth proportional to 2,688.14, 4,028.57 and 1,997.42 is: 2,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.14 : 4,028.57 = 1,997.42 : x
  2. Step 2: Convert to fraction form
    2,688.14/4,028.57 = 1,997.42/x
  3. Step 3: Cross multiply
    2,688.14x = 4,028.57 × 1,997.42
  4. Step 4: Simplify right side
    2,688.14x = 8,046,723.65
  5. Step 5: Solve for x
    x = 8,046,723.65/2,688.14
  6. Step 6: Final answer
    x = 2,993.41

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1.5x scale

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.