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Finding the Fourth Proportional to 6,344.32, 9,516.48 and 1,961.68

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Solution

The fourth proportional to 6,344.32, 9,516.48 and 1,961.68 is: 2,942.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,344.32 : 9,516.48 = 1,961.68 : x
  2. Step 2: Convert to fraction form
    6,344.32/9,516.48 = 1,961.68/x
  3. Step 3: Cross multiply
    6,344.32x = 9,516.48 × 1,961.68
  4. Step 4: Simplify right side
    6,344.32x = 18,668,288.49
  5. Step 5: Solve for x
    x = 18,668,288.49/6,344.32
  6. Step 6: Final answer
    x = 2,942.52

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.