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Finding the Fourth Proportional to 6,807.46, 10,203.97 and 3,879.49

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Solution

The fourth proportional to 6,807.46, 10,203.97 and 3,879.49 is: 5,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.46 : 10,203.97 = 3,879.49 : x
  2. Step 2: Convert to fraction form
    6,807.46/10,203.97 = 3,879.49/x
  3. Step 3: Cross multiply
    6,807.46x = 10,203.97 × 3,879.49
  4. Step 4: Simplify right side
    6,807.46x = 39,586,199.58
  5. Step 5: Solve for x
    x = 39,586,199.58/6,807.46
  6. Step 6: Final answer
    x = 5,815.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.