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Finding the Fourth Proportional to 6,238.96, 8,613.81 and 4,820.18

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Solution

The fourth proportional to 6,238.96, 8,613.81 and 4,820.18 is: 6,654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.96 : 8,613.81 = 4,820.18 : x
  2. Step 2: Convert to fraction form
    6,238.96/8,613.81 = 4,820.18/x
  3. Step 3: Cross multiply
    6,238.96x = 8,613.81 × 4,820.18
  4. Step 4: Simplify right side
    6,238.96x = 41,520,071.62
  5. Step 5: Solve for x
    x = 41,520,071.62/6,238.96
  6. Step 6: Final answer
    x = 6,654.97

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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.