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Finding the Fourth Proportional to 6,699.84, 10,049.85 and 3,190.21

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Solution

The fourth proportional to 6,699.84, 10,049.85 and 3,190.21 is: 4,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.84 : 10,049.85 = 3,190.21 : x
  2. Step 2: Convert to fraction form
    6,699.84/10,049.85 = 3,190.21/x
  3. Step 3: Cross multiply
    6,699.84x = 10,049.85 × 3,190.21
  4. Step 4: Simplify right side
    6,699.84x = 32,061,131.97
  5. Step 5: Solve for x
    x = 32,061,131.97/6,699.84
  6. Step 6: Final answer
    x = 4,785.36

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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.