Home / 3,176.90-4,383.46-1,997.28

Finding the Fourth Proportional to 3,176.90, 4,383.46 and 1,997.28

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Solution

The fourth proportional to 3,176.90, 4,383.46 and 1,997.28 is: 2,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.90 : 4,383.46 = 1,997.28 : x
  2. Step 2: Convert to fraction form
    3,176.90/4,383.46 = 1,997.28/x
  3. Step 3: Cross multiply
    3,176.90x = 4,383.46 × 1,997.28
  4. Step 4: Simplify right side
    3,176.90x = 8,754,992.00
  5. Step 5: Solve for x
    x = 8,754,992.00/3,176.90
  6. Step 6: Final answer
    x = 2,755.83

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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.