Home / 3,811.26-5,256.57-2,551.92

Finding the Fourth Proportional to 3,811.26, 5,256.57 and 2,551.92

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Solution

The fourth proportional to 3,811.26, 5,256.57 and 2,551.92 is: 3,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.26 : 5,256.57 = 2,551.92 : x
  2. Step 2: Convert to fraction form
    3,811.26/5,256.57 = 2,551.92/x
  3. Step 3: Cross multiply
    3,811.26x = 5,256.57 × 2,551.92
  4. Step 4: Simplify right side
    3,811.26x = 13,414,346.11
  5. Step 5: Solve for x
    x = 13,414,346.11/3,811.26
  6. Step 6: Final answer
    x = 3,519.66

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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.