Home / 2,728.38-4,092.57-1,429.14

Finding the Fourth Proportional to 2,728.38, 4,092.57 and 1,429.14

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Solution

The fourth proportional to 2,728.38, 4,092.57 and 1,429.14 is: 2,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.38 : 4,092.57 = 1,429.14 : x
  2. Step 2: Convert to fraction form
    2,728.38/4,092.57 = 1,429.14/x
  3. Step 3: Cross multiply
    2,728.38x = 4,092.57 × 1,429.14
  4. Step 4: Simplify right side
    2,728.38x = 5,848,855.49
  5. Step 5: Solve for x
    x = 5,848,855.49/2,728.38
  6. Step 6: Final answer
    x = 2,143.71

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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.