Home / 6,219.38-9,320.03-3,991.22

Finding the Fourth Proportional to 6,219.38, 9,320.03 and 3,991.22

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Solution

The fourth proportional to 6,219.38, 9,320.03 and 3,991.22 is: 5,981.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.38 : 9,320.03 = 3,991.22 : x
  2. Step 2: Convert to fraction form
    6,219.38/9,320.03 = 3,991.22/x
  3. Step 3: Cross multiply
    6,219.38x = 9,320.03 × 3,991.22
  4. Step 4: Simplify right side
    6,219.38x = 37,198,325.92
  5. Step 5: Solve for x
    x = 37,198,325.92/6,219.38
  6. Step 6: Final answer
    x = 5,981.03

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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.