Home / 3,805.48-5,251.22-2,126.74

Finding the Fourth Proportional to 3,805.48, 5,251.22 and 2,126.74

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Solution

The fourth proportional to 3,805.48, 5,251.22 and 2,126.74 is: 2,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.48 : 5,251.22 = 2,126.74 : x
  2. Step 2: Convert to fraction form
    3,805.48/5,251.22 = 2,126.74/x
  3. Step 3: Cross multiply
    3,805.48x = 5,251.22 × 2,126.74
  4. Step 4: Simplify right side
    3,805.48x = 11,167,979.62
  5. Step 5: Solve for x
    x = 11,167,979.62/3,805.48
  6. Step 6: Final answer
    x = 2,934.71

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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.