Home / 1,639.00-2,273.41-1,579.90

Finding the Fourth Proportional to 1,639.00, 2,273.41 and 1,579.90

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Solution

The fourth proportional to 1,639.00, 2,273.41 and 1,579.90 is: 2,191.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.00 : 2,273.41 = 1,579.90 : x
  2. Step 2: Convert to fraction form
    1,639.00/2,273.41 = 1,579.90/x
  3. Step 3: Cross multiply
    1,639.00x = 2,273.41 × 1,579.90
  4. Step 4: Simplify right side
    1,639.00x = 3,591,765.46
  5. Step 5: Solve for x
    x = 3,591,765.46/1,639.00
  6. Step 6: Final answer
    x = 2,191.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.