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Finding the Fourth Proportional to 6,316.82, 8,717.69 and 3,664.76

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Solution

The fourth proportional to 6,316.82, 8,717.69 and 3,664.76 is: 5,057.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,316.82 : 8,717.69 = 3,664.76 : x
  2. Step 2: Convert to fraction form
    6,316.82/8,717.69 = 3,664.76/x
  3. Step 3: Cross multiply
    6,316.82x = 8,717.69 × 3,664.76
  4. Step 4: Simplify right side
    6,316.82x = 31,948,241.60
  5. Step 5: Solve for x
    x = 31,948,241.60/6,316.82
  6. Step 6: Final answer
    x = 5,057.65

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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.