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Finding the Fourth Proportional to 6,393.44, 8,820.92 and 3,739.88

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Solution

The fourth proportional to 6,393.44, 8,820.92 and 3,739.88 is: 5,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.44 : 8,820.92 = 3,739.88 : x
  2. Step 2: Convert to fraction form
    6,393.44/8,820.92 = 3,739.88/x
  3. Step 3: Cross multiply
    6,393.44x = 8,820.92 × 3,739.88
  4. Step 4: Simplify right side
    6,393.44x = 32,989,213.69
  5. Step 5: Solve for x
    x = 32,989,213.69/6,393.44
  6. Step 6: Final answer
    x = 5,159.85

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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.