Home / 2,785.22-4,181.94-1,555.04

Finding the Fourth Proportional to 2,785.22, 4,181.94 and 1,555.04

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Solution

The fourth proportional to 2,785.22, 4,181.94 and 1,555.04 is: 2,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.22 : 4,181.94 = 1,555.04 : x
  2. Step 2: Convert to fraction form
    2,785.22/4,181.94 = 1,555.04/x
  3. Step 3: Cross multiply
    2,785.22x = 4,181.94 × 1,555.04
  4. Step 4: Simplify right side
    2,785.22x = 6,503,083.98
  5. Step 5: Solve for x
    x = 6,503,083.98/2,785.22
  6. Step 6: Final answer
    x = 2,334.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.