Home / 3,676.82-5,515.31-1,079.76

Finding the Fourth Proportional to 3,676.82, 5,515.31 and 1,079.76

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Solution

The fourth proportional to 3,676.82, 5,515.31 and 1,079.76 is: 1,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.82 : 5,515.31 = 1,079.76 : x
  2. Step 2: Convert to fraction form
    3,676.82/5,515.31 = 1,079.76/x
  3. Step 3: Cross multiply
    3,676.82x = 5,515.31 × 1,079.76
  4. Step 4: Simplify right side
    3,676.82x = 5,955,211.13
  5. Step 5: Solve for x
    x = 5,955,211.13/3,676.82
  6. Step 6: Final answer
    x = 1,619.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.