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Finding the Fourth Proportional to 6,755, 9,322.14 and 3,960.68

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Solution

The fourth proportional to 6,755, 9,322.14 and 3,960.68 is: 5,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,755 : 9,322.14 = 3,960.68 : x
  2. Step 2: Convert to fraction form
    6,755/9,322.14 = 3,960.68/x
  3. Step 3: Cross multiply
    6,755x = 9,322.14 × 3,960.68
  4. Step 4: Simplify right side
    6,755x = 36,922,013.46
  5. Step 5: Solve for x
    x = 36,922,013.46/6,755
  6. Step 6: Final answer
    x = 5,465.88

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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.