Home / 3,006.87-4,141.77-2,121.12

Finding the Fourth Proportional to 3,006.87, 4,141.77 and 2,121.12

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Solution

The fourth proportional to 3,006.87, 4,141.77 and 2,121.12 is: 2,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.87 : 4,141.77 = 2,121.12 : x
  2. Step 2: Convert to fraction form
    3,006.87/4,141.77 = 2,121.12/x
  3. Step 3: Cross multiply
    3,006.87x = 4,141.77 × 2,121.12
  4. Step 4: Simplify right side
    3,006.87x = 8,785,191.18
  5. Step 5: Solve for x
    x = 8,785,191.18/3,006.87
  6. Step 6: Final answer
    x = 2,921.71

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1.5x scale

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.