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Finding the Fourth Proportional to 3,676.96, 5,081.48 and 3,012.76

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Solution

The fourth proportional to 3,676.96, 5,081.48 and 3,012.76 is: 4,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.96 : 5,081.48 = 3,012.76 : x
  2. Step 2: Convert to fraction form
    3,676.96/5,081.48 = 3,012.76/x
  3. Step 3: Cross multiply
    3,676.96x = 5,081.48 × 3,012.76
  4. Step 4: Simplify right side
    3,676.96x = 15,309,279.68
  5. Step 5: Solve for x
    x = 15,309,279.68/3,676.96
  6. Step 6: Final answer
    x = 4,163.57

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Half scale
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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.