Home / 5,790.38-7,990.53-3,431.12

Finding the Fourth Proportional to 5,790.38, 7,990.53 and 3,431.12

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Solution

The fourth proportional to 5,790.38, 7,990.53 and 3,431.12 is: 4,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.38 : 7,990.53 = 3,431.12 : x
  2. Step 2: Convert to fraction form
    5,790.38/7,990.53 = 3,431.12/x
  3. Step 3: Cross multiply
    5,790.38x = 7,990.53 × 3,431.12
  4. Step 4: Simplify right side
    5,790.38x = 27,416,467.29
  5. Step 5: Solve for x
    x = 27,416,467.29/5,790.38
  6. Step 6: Final answer
    x = 4,734.83

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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.