Home / 3,928.92-5,871.72-2,876.94

Finding the Fourth Proportional to 3,928.92, 5,871.72 and 2,876.94

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Solution

The fourth proportional to 3,928.92, 5,871.72 and 2,876.94 is: 4,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.92 : 5,871.72 = 2,876.94 : x
  2. Step 2: Convert to fraction form
    3,928.92/5,871.72 = 2,876.94/x
  3. Step 3: Cross multiply
    3,928.92x = 5,871.72 × 2,876.94
  4. Step 4: Simplify right side
    3,928.92x = 16,892,586.14
  5. Step 5: Solve for x
    x = 16,892,586.14/3,928.92
  6. Step 6: Final answer
    x = 4,299.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.