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Finding the Fourth Proportional to 4,216.43, 5,809.18 and 2,939.11

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Solution

The fourth proportional to 4,216.43, 5,809.18 and 2,939.11 is: 4,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,216.43 : 5,809.18 = 2,939.11 : x
  2. Step 2: Convert to fraction form
    4,216.43/5,809.18 = 2,939.11/x
  3. Step 3: Cross multiply
    4,216.43x = 5,809.18 × 2,939.11
  4. Step 4: Simplify right side
    4,216.43x = 17,073,819.03
  5. Step 5: Solve for x
    x = 17,073,819.03/4,216.43
  6. Step 6: Final answer
    x = 4,049.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.