Home / 4,161.80-6,243.78-2,081.72

Finding the Fourth Proportional to 4,161.80, 6,243.78 and 2,081.72

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Solution

The fourth proportional to 4,161.80, 6,243.78 and 2,081.72 is: 3,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.80 : 6,243.78 = 2,081.72 : x
  2. Step 2: Convert to fraction form
    4,161.80/6,243.78 = 2,081.72/x
  3. Step 3: Cross multiply
    4,161.80x = 6,243.78 × 2,081.72
  4. Step 4: Simplify right side
    4,161.80x = 12,997,801.70
  5. Step 5: Solve for x
    x = 12,997,801.70/4,161.80
  6. Step 6: Final answer
    x = 3,123.12

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1.5x scale

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.