Home / 1,193.20-1,790.12-371.42

Finding the Fourth Proportional to 1,193.20, 1,790.12 and 371.42

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Solution

The fourth proportional to 1,193.20, 1,790.12 and 371.42 is: 557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.20 : 1,790.12 = 371.42 : x
  2. Step 2: Convert to fraction form
    1,193.20/1,790.12 = 371.42/x
  3. Step 3: Cross multiply
    1,193.20x = 1,790.12 × 371.42
  4. Step 4: Simplify right side
    1,193.20x = 664,886.37
  5. Step 5: Solve for x
    x = 664,886.37/1,193.20
  6. Step 6: Final answer
    x = 557.23

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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.