Home / 3,195.72-4,789.22-2,415.09

Finding the Fourth Proportional to 3,195.72, 4,789.22 and 2,415.09

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Solution

The fourth proportional to 3,195.72, 4,789.22 and 2,415.09 is: 3,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.72 : 4,789.22 = 2,415.09 : x
  2. Step 2: Convert to fraction form
    3,195.72/4,789.22 = 2,415.09/x
  3. Step 3: Cross multiply
    3,195.72x = 4,789.22 × 2,415.09
  4. Step 4: Simplify right side
    3,195.72x = 11,566,385.25
  5. Step 5: Solve for x
    x = 11,566,385.25/3,195.72
  6. Step 6: Final answer
    x = 3,619.34

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1.5x scale

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.