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Finding the Fourth Proportional to 6,299.50, 8,691.50 and 4,062.68

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Solution

The fourth proportional to 6,299.50, 8,691.50 and 4,062.68 is: 5,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,299.50 : 8,691.50 = 4,062.68 : x
  2. Step 2: Convert to fraction form
    6,299.50/8,691.50 = 4,062.68/x
  3. Step 3: Cross multiply
    6,299.50x = 8,691.50 × 4,062.68
  4. Step 4: Simplify right side
    6,299.50x = 35,310,783.22
  5. Step 5: Solve for x
    x = 35,310,783.22/6,299.50
  6. Step 6: Final answer
    x = 5,605.33

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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.