Home / 4,143.21-6,217.05-3,220.62

Finding the Fourth Proportional to 4,143.21, 6,217.05 and 3,220.62

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Solution

The fourth proportional to 4,143.21, 6,217.05 and 3,220.62 is: 4,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.21 : 6,217.05 = 3,220.62 : x
  2. Step 2: Convert to fraction form
    4,143.21/6,217.05 = 3,220.62/x
  3. Step 3: Cross multiply
    4,143.21x = 6,217.05 × 3,220.62
  4. Step 4: Simplify right side
    4,143.21x = 20,022,755.57
  5. Step 5: Solve for x
    x = 20,022,755.57/4,143.21
  6. Step 6: Final answer
    x = 4,832.67

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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.