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Finding the Fourth Proportional to 6,340.74, 8,747.31 and 4,103.34

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Solution

The fourth proportional to 6,340.74, 8,747.31 and 4,103.34 is: 5,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.74 : 8,747.31 = 4,103.34 : x
  2. Step 2: Convert to fraction form
    6,340.74/8,747.31 = 4,103.34/x
  3. Step 3: Cross multiply
    6,340.74x = 8,747.31 × 4,103.34
  4. Step 4: Simplify right side
    6,340.74x = 35,893,187.02
  5. Step 5: Solve for x
    x = 35,893,187.02/6,340.74
  6. Step 6: Final answer
    x = 5,660.73

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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.