Home / 3,161.46-4,742.22-2,072.72

Finding the Fourth Proportional to 3,161.46, 4,742.22 and 2,072.72

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Solution

The fourth proportional to 3,161.46, 4,742.22 and 2,072.72 is: 3,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.46 : 4,742.22 = 2,072.72 : x
  2. Step 2: Convert to fraction form
    3,161.46/4,742.22 = 2,072.72/x
  3. Step 3: Cross multiply
    3,161.46x = 4,742.22 × 2,072.72
  4. Step 4: Simplify right side
    3,161.46x = 9,829,270.53
  5. Step 5: Solve for x
    x = 9,829,270.53/3,161.46
  6. Step 6: Final answer
    x = 3,109.09

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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.