Home / 6,619.77-9,134.61-3,967.11

Finding the Fourth Proportional to 6,619.77, 9,134.61 and 3,967.11

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Solution

The fourth proportional to 6,619.77, 9,134.61 and 3,967.11 is: 5,474.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.77 : 9,134.61 = 3,967.11 : x
  2. Step 2: Convert to fraction form
    6,619.77/9,134.61 = 3,967.11/x
  3. Step 3: Cross multiply
    6,619.77x = 9,134.61 × 3,967.11
  4. Step 4: Simplify right side
    6,619.77x = 36,238,002.68
  5. Step 5: Solve for x
    x = 36,238,002.68/6,619.77
  6. Step 6: Final answer
    x = 5,474.21

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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.