Home / 3,691.90-5,538.55-1,193.76

Finding the Fourth Proportional to 3,691.90, 5,538.55 and 1,193.76

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Solution

The fourth proportional to 3,691.90, 5,538.55 and 1,193.76 is: 1,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.90 : 5,538.55 = 1,193.76 : x
  2. Step 2: Convert to fraction form
    3,691.90/5,538.55 = 1,193.76/x
  3. Step 3: Cross multiply
    3,691.90x = 5,538.55 × 1,193.76
  4. Step 4: Simplify right side
    3,691.90x = 6,611,700.94
  5. Step 5: Solve for x
    x = 6,611,700.94/3,691.90
  6. Step 6: Final answer
    x = 1,790.87

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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.