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Finding the Fourth Proportional to 6,469.93, 8,928.93 and 3,817.72

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Solution

The fourth proportional to 6,469.93, 8,928.93 and 3,817.72 is: 5,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.93 : 8,928.93 = 3,817.72 : x
  2. Step 2: Convert to fraction form
    6,469.93/8,928.93 = 3,817.72/x
  3. Step 3: Cross multiply
    6,469.93x = 8,928.93 × 3,817.72
  4. Step 4: Simplify right side
    6,469.93x = 34,088,154.64
  5. Step 5: Solve for x
    x = 34,088,154.64/6,469.93
  6. Step 6: Final answer
    x = 5,268.71

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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.