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Finding the Fourth Proportional to 6,469.96, 8,928.78 and 3,817.48

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Solution

The fourth proportional to 6,469.96, 8,928.78 and 3,817.48 is: 5,268.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.96 : 8,928.78 = 3,817.48 : x
  2. Step 2: Convert to fraction form
    6,469.96/8,928.78 = 3,817.48/x
  3. Step 3: Cross multiply
    6,469.96x = 8,928.78 × 3,817.48
  4. Step 4: Simplify right side
    6,469.96x = 34,085,439.07
  5. Step 5: Solve for x
    x = 34,085,439.07/6,469.96
  6. Step 6: Final answer
    x = 5,268.26

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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.