Home / 3,213.80-4,827.90-3,082.60

Finding the Fourth Proportional to 3,213.80, 4,827.90 and 3,082.60

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Solution

The fourth proportional to 3,213.80, 4,827.90 and 3,082.60 is: 4,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.80 : 4,827.90 = 3,082.60 : x
  2. Step 2: Convert to fraction form
    3,213.80/4,827.90 = 3,082.60/x
  3. Step 3: Cross multiply
    3,213.80x = 4,827.90 × 3,082.60
  4. Step 4: Simplify right side
    3,213.80x = 14,882,484.54
  5. Step 5: Solve for x
    x = 14,882,484.54/3,213.80
  6. Step 6: Final answer
    x = 4,630.81

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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.