Home / 3,761.18-5,190.32-2,190.14

Finding the Fourth Proportional to 3,761.18, 5,190.32 and 2,190.14

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Solution

The fourth proportional to 3,761.18, 5,190.32 and 2,190.14 is: 3,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.18 : 5,190.32 = 2,190.14 : x
  2. Step 2: Convert to fraction form
    3,761.18/5,190.32 = 2,190.14/x
  3. Step 3: Cross multiply
    3,761.18x = 5,190.32 × 2,190.14
  4. Step 4: Simplify right side
    3,761.18x = 11,367,527.44
  5. Step 5: Solve for x
    x = 11,367,527.44/3,761.18
  6. Step 6: Final answer
    x = 3,022.33

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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.