Home / 3,741.43-5,161.28-2,855.70

Finding the Fourth Proportional to 3,741.43, 5,161.28 and 2,855.70

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Solution

The fourth proportional to 3,741.43, 5,161.28 and 2,855.70 is: 3,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.43 : 5,161.28 = 2,855.70 : x
  2. Step 2: Convert to fraction form
    3,741.43/5,161.28 = 2,855.70/x
  3. Step 3: Cross multiply
    3,741.43x = 5,161.28 × 2,855.70
  4. Step 4: Simplify right side
    3,741.43x = 14,739,067.30
  5. Step 5: Solve for x
    x = 14,739,067.30/3,741.43
  6. Step 6: Final answer
    x = 3,939.42

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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.