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Finding the Fourth Proportional to 6,396.37, 8,829.20 and 3,744.63

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Solution

The fourth proportional to 6,396.37, 8,829.20 and 3,744.63 is: 5,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.37 : 8,829.20 = 3,744.63 : x
  2. Step 2: Convert to fraction form
    6,396.37/8,829.20 = 3,744.63/x
  3. Step 3: Cross multiply
    6,396.37x = 8,829.20 × 3,744.63
  4. Step 4: Simplify right side
    6,396.37x = 33,062,096.56
  5. Step 5: Solve for x
    x = 33,062,096.56/6,396.37
  6. Step 6: Final answer
    x = 5,168.89

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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.