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Finding the Fourth Proportional to 6,628.12, 9,944.70 and 4,160.20

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Solution

The fourth proportional to 6,628.12, 9,944.70 and 4,160.20 is: 6,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.12 : 9,944.70 = 4,160.20 : x
  2. Step 2: Convert to fraction form
    6,628.12/9,944.70 = 4,160.20/x
  3. Step 3: Cross multiply
    6,628.12x = 9,944.70 × 4,160.20
  4. Step 4: Simplify right side
    6,628.12x = 41,371,940.94
  5. Step 5: Solve for x
    x = 41,371,940.94/6,628.12
  6. Step 6: Final answer
    x = 6,241.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.