Home / 2,240.46-3,091.87-1,245.72

Finding the Fourth Proportional to 2,240.46, 3,091.87 and 1,245.72

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Solution

The fourth proportional to 2,240.46, 3,091.87 and 1,245.72 is: 1,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.46 : 3,091.87 = 1,245.72 : x
  2. Step 2: Convert to fraction form
    2,240.46/3,091.87 = 1,245.72/x
  3. Step 3: Cross multiply
    2,240.46x = 3,091.87 × 1,245.72
  4. Step 4: Simplify right side
    2,240.46x = 3,851,604.30
  5. Step 5: Solve for x
    x = 3,851,604.30/2,240.46
  6. Step 6: Final answer
    x = 1,719.11

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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.