Home / 3,827.12-5,731.42-2,178.66

Finding the Fourth Proportional to 3,827.12, 5,731.42 and 2,178.66

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Solution

The fourth proportional to 3,827.12, 5,731.42 and 2,178.66 is: 3,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.12 : 5,731.42 = 2,178.66 : x
  2. Step 2: Convert to fraction form
    3,827.12/5,731.42 = 2,178.66/x
  3. Step 3: Cross multiply
    3,827.12x = 5,731.42 × 2,178.66
  4. Step 4: Simplify right side
    3,827.12x = 12,486,815.50
  5. Step 5: Solve for x
    x = 12,486,815.50/3,827.12
  6. Step 6: Final answer
    x = 3,262.72

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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.