Home / 3,790.54-5,231.34-2,219.94

Finding the Fourth Proportional to 3,790.54, 5,231.34 and 2,219.94

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Solution

The fourth proportional to 3,790.54, 5,231.34 and 2,219.94 is: 3,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.54 : 5,231.34 = 2,219.94 : x
  2. Step 2: Convert to fraction form
    3,790.54/5,231.34 = 2,219.94/x
  3. Step 3: Cross multiply
    3,790.54x = 5,231.34 × 2,219.94
  4. Step 4: Simplify right side
    3,790.54x = 11,613,260.92
  5. Step 5: Solve for x
    x = 11,613,260.92/3,790.54
  6. Step 6: Final answer
    x = 3,063.75

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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.