Home / 3,788.16-5,227.64-2,109.64

Finding the Fourth Proportional to 3,788.16, 5,227.64 and 2,109.64

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Solution

The fourth proportional to 3,788.16, 5,227.64 and 2,109.64 is: 2,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.16 : 5,227.64 = 2,109.64 : x
  2. Step 2: Convert to fraction form
    3,788.16/5,227.64 = 2,109.64/x
  3. Step 3: Cross multiply
    3,788.16x = 5,227.64 × 2,109.64
  4. Step 4: Simplify right side
    3,788.16x = 11,028,438.45
  5. Step 5: Solve for x
    x = 11,028,438.45/3,788.16
  6. Step 6: Final answer
    x = 2,911.29

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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.