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Finding the Fourth Proportional to 6,406.10, 8,841.10 and 3,755.74

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Solution

The fourth proportional to 6,406.10, 8,841.10 and 3,755.74 is: 5,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,406.10 : 8,841.10 = 3,755.74 : x
  2. Step 2: Convert to fraction form
    6,406.10/8,841.10 = 3,755.74/x
  3. Step 3: Cross multiply
    6,406.10x = 8,841.10 × 3,755.74
  4. Step 4: Simplify right side
    6,406.10x = 33,204,872.91
  5. Step 5: Solve for x
    x = 33,204,872.91/6,406.10
  6. Step 6: Final answer
    x = 5,183.32

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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.