Home / 4,217.22-6,321.33-2,138.76

Finding the Fourth Proportional to 4,217.22, 6,321.33 and 2,138.76

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Solution

The fourth proportional to 4,217.22, 6,321.33 and 2,138.76 is: 3,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.22 : 6,321.33 = 2,138.76 : x
  2. Step 2: Convert to fraction form
    4,217.22/6,321.33 = 2,138.76/x
  3. Step 3: Cross multiply
    4,217.22x = 6,321.33 × 2,138.76
  4. Step 4: Simplify right side
    4,217.22x = 13,519,807.75
  5. Step 5: Solve for x
    x = 13,519,807.75/4,217.22
  6. Step 6: Final answer
    x = 3,205.86

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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.