Home / 3,266.30-4,906.65-3,143.90

Finding the Fourth Proportional to 3,266.30, 4,906.65 and 3,143.90

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Solution

The fourth proportional to 3,266.30, 4,906.65 and 3,143.90 is: 4,722.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.30 : 4,906.65 = 3,143.90 : x
  2. Step 2: Convert to fraction form
    3,266.30/4,906.65 = 3,143.90/x
  3. Step 3: Cross multiply
    3,266.30x = 4,906.65 × 3,143.90
  4. Step 4: Simplify right side
    3,266.30x = 15,426,016.94
  5. Step 5: Solve for x
    x = 15,426,016.94/3,266.30
  6. Step 6: Final answer
    x = 4,722.78

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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.