Home / 3,471.43-5,214.30-3,321.72

Finding the Fourth Proportional to 3,471.43, 5,214.30 and 3,321.72

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Solution

The fourth proportional to 3,471.43, 5,214.30 and 3,321.72 is: 4,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.43 : 5,214.30 = 3,321.72 : x
  2. Step 2: Convert to fraction form
    3,471.43/5,214.30 = 3,321.72/x
  3. Step 3: Cross multiply
    3,471.43x = 5,214.30 × 3,321.72
  4. Step 4: Simplify right side
    3,471.43x = 17,320,444.60
  5. Step 5: Solve for x
    x = 17,320,444.60/3,471.43
  6. Step 6: Final answer
    x = 4,989.43

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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.