Home / 4,121.68-6,179.64-2,039.14

Finding the Fourth Proportional to 4,121.68, 6,179.64 and 2,039.14

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Solution

The fourth proportional to 4,121.68, 6,179.64 and 2,039.14 is: 3,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.68 : 6,179.64 = 2,039.14 : x
  2. Step 2: Convert to fraction form
    4,121.68/6,179.64 = 2,039.14/x
  3. Step 3: Cross multiply
    4,121.68x = 6,179.64 × 2,039.14
  4. Step 4: Simplify right side
    4,121.68x = 12,601,151.11
  5. Step 5: Solve for x
    x = 12,601,151.11/4,121.68
  6. Step 6: Final answer
    x = 3,057.29

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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.