Home / 3,575.10-5,358.50-2,115.48

Finding the Fourth Proportional to 3,575.10, 5,358.50 and 2,115.48

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Solution

The fourth proportional to 3,575.10, 5,358.50 and 2,115.48 is: 3,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.10 : 5,358.50 = 2,115.48 : x
  2. Step 2: Convert to fraction form
    3,575.10/5,358.50 = 2,115.48/x
  3. Step 3: Cross multiply
    3,575.10x = 5,358.50 × 2,115.48
  4. Step 4: Simplify right side
    3,575.10x = 11,335,799.58
  5. Step 5: Solve for x
    x = 11,335,799.58/3,575.10
  6. Step 6: Final answer
    x = 3,170.76

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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.