Home / 3,680.20-5,512.21-3,392.12

Finding the Fourth Proportional to 3,680.20, 5,512.21 and 3,392.12

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Solution

The fourth proportional to 3,680.20, 5,512.21 and 3,392.12 is: 5,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.20 : 5,512.21 = 3,392.12 : x
  2. Step 2: Convert to fraction form
    3,680.20/5,512.21 = 3,392.12/x
  3. Step 3: Cross multiply
    3,680.20x = 5,512.21 × 3,392.12
  4. Step 4: Simplify right side
    3,680.20x = 18,698,077.79
  5. Step 5: Solve for x
    x = 18,698,077.79/3,680.20
  6. Step 6: Final answer
    x = 5,080.73

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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.