Home / 3,021.67-4,170.03-1,902.18

Finding the Fourth Proportional to 3,021.67, 4,170.03 and 1,902.18

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Solution

The fourth proportional to 3,021.67, 4,170.03 and 1,902.18 is: 2,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.67 : 4,170.03 = 1,902.18 : x
  2. Step 2: Convert to fraction form
    3,021.67/4,170.03 = 1,902.18/x
  3. Step 3: Cross multiply
    3,021.67x = 4,170.03 × 1,902.18
  4. Step 4: Simplify right side
    3,021.67x = 7,932,137.24
  5. Step 5: Solve for x
    x = 7,932,137.24/3,021.67
  6. Step 6: Final answer
    x = 2,625.09

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Half scale
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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.