Home / 3,102.15-4,280.67-2,514.09

Finding the Fourth Proportional to 3,102.15, 4,280.67 and 2,514.09

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Solution

The fourth proportional to 3,102.15, 4,280.67 and 2,514.09 is: 3,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.15 : 4,280.67 = 2,514.09 : x
  2. Step 2: Convert to fraction form
    3,102.15/4,280.67 = 2,514.09/x
  3. Step 3: Cross multiply
    3,102.15x = 4,280.67 × 2,514.09
  4. Step 4: Simplify right side
    3,102.15x = 10,761,988.68
  5. Step 5: Solve for x
    x = 10,761,988.68/3,102.15
  6. Step 6: Final answer
    x = 3,469.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.