Home / 3,788.46-5,227.78-2,109.60

Finding the Fourth Proportional to 3,788.46, 5,227.78 and 2,109.60

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Solution

The fourth proportional to 3,788.46, 5,227.78 and 2,109.60 is: 2,911.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.46 : 5,227.78 = 2,109.60 : x
  2. Step 2: Convert to fraction form
    3,788.46/5,227.78 = 2,109.60/x
  3. Step 3: Cross multiply
    3,788.46x = 5,227.78 × 2,109.60
  4. Step 4: Simplify right side
    3,788.46x = 11,028,537.43
  5. Step 5: Solve for x
    x = 11,028,537.43/3,788.46
  6. Step 6: Final answer
    x = 2,911.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.