Home / 1,997.97-2,757.09-1,101.67

Finding the Fourth Proportional to 1,997.97, 2,757.09 and 1,101.67

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Solution

The fourth proportional to 1,997.97, 2,757.09 and 1,101.67 is: 1,520.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.97 : 2,757.09 = 1,101.67 : x
  2. Step 2: Convert to fraction form
    1,997.97/2,757.09 = 1,101.67/x
  3. Step 3: Cross multiply
    1,997.97x = 2,757.09 × 1,101.67
  4. Step 4: Simplify right side
    1,997.97x = 3,037,403.34
  5. Step 5: Solve for x
    x = 3,037,403.34/1,997.97
  6. Step 6: Final answer
    x = 1,520.24

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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.