Home / 3,021.97-4,170.12-1,677.49

Finding the Fourth Proportional to 3,021.97, 4,170.12 and 1,677.49

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Solution

The fourth proportional to 3,021.97, 4,170.12 and 1,677.49 is: 2,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.97 : 4,170.12 = 1,677.49 : x
  2. Step 2: Convert to fraction form
    3,021.97/4,170.12 = 1,677.49/x
  3. Step 3: Cross multiply
    3,021.97x = 4,170.12 × 1,677.49
  4. Step 4: Simplify right side
    3,021.97x = 6,995,334.60
  5. Step 5: Solve for x
    x = 6,995,334.60/3,021.97
  6. Step 6: Final answer
    x = 2,314.83

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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.