Home / 6,921.92-10,371.92-3,631.70

Finding the Fourth Proportional to 6,921.92, 10,371.92 and 3,631.70

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Solution

The fourth proportional to 6,921.92, 10,371.92 and 3,631.70 is: 5,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.92 : 10,371.92 = 3,631.70 : x
  2. Step 2: Convert to fraction form
    6,921.92/10,371.92 = 3,631.70/x
  3. Step 3: Cross multiply
    6,921.92x = 10,371.92 × 3,631.70
  4. Step 4: Simplify right side
    6,921.92x = 37,667,709.64
  5. Step 5: Solve for x
    x = 37,667,709.64/6,921.92
  6. Step 6: Final answer
    x = 5,441.80

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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.