Home / 3,788.72-5,226.75-2,216.12

Finding the Fourth Proportional to 3,788.72, 5,226.75 and 2,216.12

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Solution

The fourth proportional to 3,788.72, 5,226.75 and 2,216.12 is: 3,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.72 : 5,226.75 = 2,216.12 : x
  2. Step 2: Convert to fraction form
    3,788.72/5,226.75 = 2,216.12/x
  3. Step 3: Cross multiply
    3,788.72x = 5,226.75 × 2,216.12
  4. Step 4: Simplify right side
    3,788.72x = 11,583,105.21
  5. Step 5: Solve for x
    x = 11,583,105.21/3,788.72
  6. Step 6: Final answer
    x = 3,057.26

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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.