Home / 4,201.92-6,299.22-2,120.18

Finding the Fourth Proportional to 4,201.92, 6,299.22 and 2,120.18

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Solution

The fourth proportional to 4,201.92, 6,299.22 and 2,120.18 is: 3,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.92 : 6,299.22 = 2,120.18 : x
  2. Step 2: Convert to fraction form
    4,201.92/6,299.22 = 2,120.18/x
  3. Step 3: Cross multiply
    4,201.92x = 6,299.22 × 2,120.18
  4. Step 4: Simplify right side
    4,201.92x = 13,355,480.26
  5. Step 5: Solve for x
    x = 13,355,480.26/4,201.92
  6. Step 6: Final answer
    x = 3,178.42

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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.