Home / 3,076.20-4,614.30-1,906.49

Finding the Fourth Proportional to 3,076.20, 4,614.30 and 1,906.49

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Solution

The fourth proportional to 3,076.20, 4,614.30 and 1,906.49 is: 2,859.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.20 : 4,614.30 = 1,906.49 : x
  2. Step 2: Convert to fraction form
    3,076.20/4,614.30 = 1,906.49/x
  3. Step 3: Cross multiply
    3,076.20x = 4,614.30 × 1,906.49
  4. Step 4: Simplify right side
    3,076.20x = 8,797,128.34
  5. Step 5: Solve for x
    x = 8,797,128.34/3,076.20
  6. Step 6: Final answer
    x = 2,859.74

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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.