Home / 3,904.74-5,388.68-2,226.42

Finding the Fourth Proportional to 3,904.74, 5,388.68 and 2,226.42

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Solution

The fourth proportional to 3,904.74, 5,388.68 and 2,226.42 is: 3,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.74 : 5,388.68 = 2,226.42 : x
  2. Step 2: Convert to fraction form
    3,904.74/5,388.68 = 2,226.42/x
  3. Step 3: Cross multiply
    3,904.74x = 5,388.68 × 2,226.42
  4. Step 4: Simplify right side
    3,904.74x = 11,997,470.49
  5. Step 5: Solve for x
    x = 11,997,470.49/3,904.74
  6. Step 6: Final answer
    x = 3,072.54

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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.