Home / 3,861.92-5,330.23-2,183.36

Finding the Fourth Proportional to 3,861.92, 5,330.23 and 2,183.36

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Solution

The fourth proportional to 3,861.92, 5,330.23 and 2,183.36 is: 3,013.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.92 : 5,330.23 = 2,183.36 : x
  2. Step 2: Convert to fraction form
    3,861.92/5,330.23 = 2,183.36/x
  3. Step 3: Cross multiply
    3,861.92x = 5,330.23 × 2,183.36
  4. Step 4: Simplify right side
    3,861.92x = 11,637,778.86
  5. Step 5: Solve for x
    x = 11,637,778.86/3,861.92
  6. Step 6: Final answer
    x = 3,013.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.