Home / 2,240.26-3,091.48-1,245.50

Finding the Fourth Proportional to 2,240.26, 3,091.48 and 1,245.50

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Solution

The fourth proportional to 2,240.26, 3,091.48 and 1,245.50 is: 1,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.26 : 3,091.48 = 1,245.50 : x
  2. Step 2: Convert to fraction form
    2,240.26/3,091.48 = 1,245.50/x
  3. Step 3: Cross multiply
    2,240.26x = 3,091.48 × 1,245.50
  4. Step 4: Simplify right side
    2,240.26x = 3,850,438.34
  5. Step 5: Solve for x
    x = 3,850,438.34/2,240.26
  6. Step 6: Final answer
    x = 1,718.75

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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.