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Finding the Fourth Proportional to 6,661.69, 9,193.13 and 3,867.19

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Solution

The fourth proportional to 6,661.69, 9,193.13 and 3,867.19 is: 5,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.69 : 9,193.13 = 3,867.19 : x
  2. Step 2: Convert to fraction form
    6,661.69/9,193.13 = 3,867.19/x
  3. Step 3: Cross multiply
    6,661.69x = 9,193.13 × 3,867.19
  4. Step 4: Simplify right side
    6,661.69x = 35,551,552.59
  5. Step 5: Solve for x
    x = 35,551,552.59/6,661.69
  6. Step 6: Final answer
    x = 5,336.72

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Double scale
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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.