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Finding the Fourth Proportional to 6,240.09, 8,609.83 and 3,880.96

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Solution

The fourth proportional to 6,240.09, 8,609.83 and 3,880.96 is: 5,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.09 : 8,609.83 = 3,880.96 : x
  2. Step 2: Convert to fraction form
    6,240.09/8,609.83 = 3,880.96/x
  3. Step 3: Cross multiply
    6,240.09x = 8,609.83 × 3,880.96
  4. Step 4: Simplify right side
    6,240.09x = 33,414,405.84
  5. Step 5: Solve for x
    x = 33,414,405.84/6,240.09
  6. Step 6: Final answer
    x = 5,354.80

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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.