Home / 3,514.75-5,269.69-2,128.44

Finding the Fourth Proportional to 3,514.75, 5,269.69 and 2,128.44

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Solution

The fourth proportional to 3,514.75, 5,269.69 and 2,128.44 is: 3,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,514.75 : 5,269.69 = 2,128.44 : x
  2. Step 2: Convert to fraction form
    3,514.75/5,269.69 = 2,128.44/x
  3. Step 3: Cross multiply
    3,514.75x = 5,269.69 × 2,128.44
  4. Step 4: Simplify right side
    3,514.75x = 11,216,218.98
  5. Step 5: Solve for x
    x = 11,216,218.98/3,514.75
  6. Step 6: Final answer
    x = 3,191.19

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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.