Home / 6,619.97-9,134.87-3,967.31

Finding the Fourth Proportional to 6,619.97, 9,134.87 and 3,967.31

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Solution

The fourth proportional to 6,619.97, 9,134.87 and 3,967.31 is: 5,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.97 : 9,134.87 = 3,967.31 : x
  2. Step 2: Convert to fraction form
    6,619.97/9,134.87 = 3,967.31/x
  3. Step 3: Cross multiply
    6,619.97x = 9,134.87 × 3,967.31
  4. Step 4: Simplify right side
    6,619.97x = 36,240,861.10
  5. Step 5: Solve for x
    x = 36,240,861.10/6,619.97
  6. Step 6: Final answer
    x = 5,474.48

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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.