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Finding the Fourth Proportional to 6,218.22, 8,581.10 and 3,423.72

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Solution

The fourth proportional to 6,218.22, 8,581.10 and 3,423.72 is: 4,724.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.22 : 8,581.10 = 3,423.72 : x
  2. Step 2: Convert to fraction form
    6,218.22/8,581.10 = 3,423.72/x
  3. Step 3: Cross multiply
    6,218.22x = 8,581.10 × 3,423.72
  4. Step 4: Simplify right side
    6,218.22x = 29,379,283.69
  5. Step 5: Solve for x
    x = 29,379,283.69/6,218.22
  6. Step 6: Final answer
    x = 4,724.71

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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.