Home / 6,790.12-10,190.30-5,438.44

Finding the Fourth Proportional to 6,790.12, 10,190.30 and 5,438.44

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Solution

The fourth proportional to 6,790.12, 10,190.30 and 5,438.44 is: 8,161.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.12 : 10,190.30 = 5,438.44 : x
  2. Step 2: Convert to fraction form
    6,790.12/10,190.30 = 5,438.44/x
  3. Step 3: Cross multiply
    6,790.12x = 10,190.30 × 5,438.44
  4. Step 4: Simplify right side
    6,790.12x = 55,419,335.13
  5. Step 5: Solve for x
    x = 55,419,335.13/6,790.12
  6. Step 6: Final answer
    x = 8,161.76

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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.