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Finding the Fourth Proportional to 6,807.36, 10,203.78 and 3,879.36

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Solution

The fourth proportional to 6,807.36, 10,203.78 and 3,879.36 is: 5,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.36 : 10,203.78 = 3,879.36 : x
  2. Step 2: Convert to fraction form
    6,807.36/10,203.78 = 3,879.36/x
  3. Step 3: Cross multiply
    6,807.36x = 10,203.78 × 3,879.36
  4. Step 4: Simplify right side
    6,807.36x = 39,584,135.98
  5. Step 5: Solve for x
    x = 39,584,135.98/6,807.36
  6. Step 6: Final answer
    x = 5,814.90

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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.