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Finding the Fourth Proportional to 6,392.27, 8,820.69 and 3,739.16

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Solution

The fourth proportional to 6,392.27, 8,820.69 and 3,739.16 is: 5,159.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.27 : 8,820.69 = 3,739.16 : x
  2. Step 2: Convert to fraction form
    6,392.27/8,820.69 = 3,739.16/x
  3. Step 3: Cross multiply
    6,392.27x = 8,820.69 × 3,739.16
  4. Step 4: Simplify right side
    6,392.27x = 32,981,927.12
  5. Step 5: Solve for x
    x = 32,981,927.12/6,392.27
  6. Step 6: Final answer
    x = 5,159.66

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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.