Home / 2,155.20-3,232.82-1,181.13

Finding the Fourth Proportional to 2,155.20, 3,232.82 and 1,181.13

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Solution

The fourth proportional to 2,155.20, 3,232.82 and 1,181.13 is: 1,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.20 : 3,232.82 = 1,181.13 : x
  2. Step 2: Convert to fraction form
    2,155.20/3,232.82 = 1,181.13/x
  3. Step 3: Cross multiply
    2,155.20x = 3,232.82 × 1,181.13
  4. Step 4: Simplify right side
    2,155.20x = 3,818,380.69
  5. Step 5: Solve for x
    x = 3,818,380.69/2,155.20
  6. Step 6: Final answer
    x = 1,771.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.