Home / 3,676.20-5,512.41-1,078.80

Finding the Fourth Proportional to 3,676.20, 5,512.41 and 1,078.80

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Solution

The fourth proportional to 3,676.20, 5,512.41 and 1,078.80 is: 1,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.20 : 5,512.41 = 1,078.80 : x
  2. Step 2: Convert to fraction form
    3,676.20/5,512.41 = 1,078.80/x
  3. Step 3: Cross multiply
    3,676.20x = 5,512.41 × 1,078.80
  4. Step 4: Simplify right side
    3,676.20x = 5,946,787.91
  5. Step 5: Solve for x
    x = 5,946,787.91/3,676.20
  6. Step 6: Final answer
    x = 1,617.65

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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.