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Finding the Fourth Proportional to 6,318.46, 8,719.50 and 3,800.62

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Solution

The fourth proportional to 6,318.46, 8,719.50 and 3,800.62 is: 5,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.46 : 8,719.50 = 3,800.62 : x
  2. Step 2: Convert to fraction form
    6,318.46/8,719.50 = 3,800.62/x
  3. Step 3: Cross multiply
    6,318.46x = 8,719.50 × 3,800.62
  4. Step 4: Simplify right side
    6,318.46x = 33,139,506.09
  5. Step 5: Solve for x
    x = 33,139,506.09/6,318.46
  6. Step 6: Final answer
    x = 5,244.87

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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.