Home / 5,790.15-7,989.84-3,431.97

Finding the Fourth Proportional to 5,790.15, 7,989.84 and 3,431.97

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Solution

The fourth proportional to 5,790.15, 7,989.84 and 3,431.97 is: 4,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.15 : 7,989.84 = 3,431.97 : x
  2. Step 2: Convert to fraction form
    5,790.15/7,989.84 = 3,431.97/x
  3. Step 3: Cross multiply
    5,790.15x = 7,989.84 × 3,431.97
  4. Step 4: Simplify right side
    5,790.15x = 27,420,891.18
  5. Step 5: Solve for x
    x = 27,420,891.18/5,790.15
  6. Step 6: Final answer
    x = 4,735.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.