Home / 4,116.21-6,168.84-2,169.78

Finding the Fourth Proportional to 4,116.21, 6,168.84 and 2,169.78

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Solution

The fourth proportional to 4,116.21, 6,168.84 and 2,169.78 is: 3,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,116.21 : 6,168.84 = 2,169.78 : x
  2. Step 2: Convert to fraction form
    4,116.21/6,168.84 = 2,169.78/x
  3. Step 3: Cross multiply
    4,116.21x = 6,168.84 × 2,169.78
  4. Step 4: Simplify right side
    4,116.21x = 13,385,025.66
  5. Step 5: Solve for x
    x = 13,385,025.66/4,116.21
  6. Step 6: Final answer
    x = 3,251.78

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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.