Home / 3,790.50-5,686.38-1,192.92

Finding the Fourth Proportional to 3,790.50, 5,686.38 and 1,192.92

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Solution

The fourth proportional to 3,790.50, 5,686.38 and 1,192.92 is: 1,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.50 : 5,686.38 = 1,192.92 : x
  2. Step 2: Convert to fraction form
    3,790.50/5,686.38 = 1,192.92/x
  3. Step 3: Cross multiply
    3,790.50x = 5,686.38 × 1,192.92
  4. Step 4: Simplify right side
    3,790.50x = 6,783,396.43
  5. Step 5: Solve for x
    x = 6,783,396.43/3,790.50
  6. Step 6: Final answer
    x = 1,789.58

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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.