Home / 3,676.16-5,512.41-2,115.75

Finding the Fourth Proportional to 3,676.16, 5,512.41 and 2,115.75

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Solution

The fourth proportional to 3,676.16, 5,512.41 and 2,115.75 is: 3,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.16 : 5,512.41 = 2,115.75 : x
  2. Step 2: Convert to fraction form
    3,676.16/5,512.41 = 2,115.75/x
  3. Step 3: Cross multiply
    3,676.16x = 5,512.41 × 2,115.75
  4. Step 4: Simplify right side
    3,676.16x = 11,662,881.46
  5. Step 5: Solve for x
    x = 11,662,881.46/3,676.16
  6. Step 6: Final answer
    x = 3,172.58

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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.