Home / 2,616.91-3,922.93-1,299.85

Finding the Fourth Proportional to 2,616.91, 3,922.93 and 1,299.85

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Solution

The fourth proportional to 2,616.91, 3,922.93 and 1,299.85 is: 1,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.91 : 3,922.93 = 1,299.85 : x
  2. Step 2: Convert to fraction form
    2,616.91/3,922.93 = 1,299.85/x
  3. Step 3: Cross multiply
    2,616.91x = 3,922.93 × 1,299.85
  4. Step 4: Simplify right side
    2,616.91x = 5,099,212.38
  5. Step 5: Solve for x
    x = 5,099,212.38/2,616.91
  6. Step 6: Final answer
    x = 1,948.56

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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.