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Finding the Fourth Proportional to 6,754.72, 9,321.21 and 3,770.49

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Solution

The fourth proportional to 6,754.72, 9,321.21 and 3,770.49 is: 5,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,754.72 : 9,321.21 = 3,770.49 : x
  2. Step 2: Convert to fraction form
    6,754.72/9,321.21 = 3,770.49/x
  3. Step 3: Cross multiply
    6,754.72x = 9,321.21 × 3,770.49
  4. Step 4: Simplify right side
    6,754.72x = 35,145,529.09
  5. Step 5: Solve for x
    x = 35,145,529.09/6,754.72
  6. Step 6: Final answer
    x = 5,203.11

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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.