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Finding the Fourth Proportional to 6,324.31, 8,731.04 and 3,807.04

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Solution

The fourth proportional to 6,324.31, 8,731.04 and 3,807.04 is: 5,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,324.31 : 8,731.04 = 3,807.04 : x
  2. Step 2: Convert to fraction form
    6,324.31/8,731.04 = 3,807.04/x
  3. Step 3: Cross multiply
    6,324.31x = 8,731.04 × 3,807.04
  4. Step 4: Simplify right side
    6,324.31x = 33,239,415.44
  5. Step 5: Solve for x
    x = 33,239,415.44/6,324.31
  6. Step 6: Final answer
    x = 5,255.82

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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.