Home / 5,279.27-7,908.07-2,638.88

Finding the Fourth Proportional to 5,279.27, 7,908.07 and 2,638.88

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Solution

The fourth proportional to 5,279.27, 7,908.07 and 2,638.88 is: 3,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.27 : 7,908.07 = 2,638.88 : x
  2. Step 2: Convert to fraction form
    5,279.27/7,908.07 = 2,638.88/x
  3. Step 3: Cross multiply
    5,279.27x = 7,908.07 × 2,638.88
  4. Step 4: Simplify right side
    5,279.27x = 20,868,408.22
  5. Step 5: Solve for x
    x = 20,868,408.22/5,279.27
  6. Step 6: Final answer
    x = 3,952.90

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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.