Home / 1,790.46-2,679.75-1,195.56

Finding the Fourth Proportional to 1,790.46, 2,679.75 and 1,195.56

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Solution

The fourth proportional to 1,790.46, 2,679.75 and 1,195.56 is: 1,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.46 : 2,679.75 = 1,195.56 : x
  2. Step 2: Convert to fraction form
    1,790.46/2,679.75 = 1,195.56/x
  3. Step 3: Cross multiply
    1,790.46x = 2,679.75 × 1,195.56
  4. Step 4: Simplify right side
    1,790.46x = 3,203,801.91
  5. Step 5: Solve for x
    x = 3,203,801.91/1,790.46
  6. Step 6: Final answer
    x = 1,789.37

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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.