Home / 3,788.56-5,226.96-2,215.54

Finding the Fourth Proportional to 3,788.56, 5,226.96 and 2,215.54

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Solution

The fourth proportional to 3,788.56, 5,226.96 and 2,215.54 is: 3,056.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.56 : 5,226.96 = 2,215.54 : x
  2. Step 2: Convert to fraction form
    3,788.56/5,226.96 = 2,215.54/x
  3. Step 3: Cross multiply
    3,788.56x = 5,226.96 × 2,215.54
  4. Step 4: Simplify right side
    3,788.56x = 11,580,538.96
  5. Step 5: Solve for x
    x = 11,580,538.96/3,788.56
  6. Step 6: Final answer
    x = 3,056.71

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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.