Home / 3,638.80-5,020.68-2,067.76

Finding the Fourth Proportional to 3,638.80, 5,020.68 and 2,067.76

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Solution

The fourth proportional to 3,638.80, 5,020.68 and 2,067.76 is: 2,853.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.80 : 5,020.68 = 2,067.76 : x
  2. Step 2: Convert to fraction form
    3,638.80/5,020.68 = 2,067.76/x
  3. Step 3: Cross multiply
    3,638.80x = 5,020.68 × 2,067.76
  4. Step 4: Simplify right side
    3,638.80x = 10,381,561.28
  5. Step 5: Solve for x
    x = 10,381,561.28/3,638.80
  6. Step 6: Final answer
    x = 2,853.02

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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.