Home / 3,378.65-5,057.46-2,144.21

Finding the Fourth Proportional to 3,378.65, 5,057.46 and 2,144.21

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Solution

The fourth proportional to 3,378.65, 5,057.46 and 2,144.21 is: 3,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.65 : 5,057.46 = 2,144.21 : x
  2. Step 2: Convert to fraction form
    3,378.65/5,057.46 = 2,144.21/x
  3. Step 3: Cross multiply
    3,378.65x = 5,057.46 × 2,144.21
  4. Step 4: Simplify right side
    3,378.65x = 10,844,231.02
  5. Step 5: Solve for x
    x = 10,844,231.02/3,378.65
  6. Step 6: Final answer
    x = 3,209.64

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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.