Home / 2,240.46-3,091.50-1,245.74

Finding the Fourth Proportional to 2,240.46, 3,091.50 and 1,245.74

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Solution

The fourth proportional to 2,240.46, 3,091.50 and 1,245.74 is: 1,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.46 : 3,091.50 = 1,245.74 : x
  2. Step 2: Convert to fraction form
    2,240.46/3,091.50 = 1,245.74/x
  3. Step 3: Cross multiply
    2,240.46x = 3,091.50 × 1,245.74
  4. Step 4: Simplify right side
    2,240.46x = 3,851,205.21
  5. Step 5: Solve for x
    x = 3,851,205.21/2,240.46
  6. Step 6: Final answer
    x = 1,718.94

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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.