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Finding the Fourth Proportional to 6,486.26, 8,951.08 and 3,691.76

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Solution

The fourth proportional to 6,486.26, 8,951.08 and 3,691.76 is: 5,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.26 : 8,951.08 = 3,691.76 : x
  2. Step 2: Convert to fraction form
    6,486.26/8,951.08 = 3,691.76/x
  3. Step 3: Cross multiply
    6,486.26x = 8,951.08 × 3,691.76
  4. Step 4: Simplify right side
    6,486.26x = 33,045,239.10
  5. Step 5: Solve for x
    x = 33,045,239.10/6,486.26
  6. Step 6: Final answer
    x = 5,094.65

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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.