Home / 2,644.28-3,640.78-2,245.15

Finding the Fourth Proportional to 2,644.28, 3,640.78 and 2,245.15

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Solution

The fourth proportional to 2,644.28, 3,640.78 and 2,245.15 is: 3,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.28 : 3,640.78 = 2,245.15 : x
  2. Step 2: Convert to fraction form
    2,644.28/3,640.78 = 2,245.15/x
  3. Step 3: Cross multiply
    2,644.28x = 3,640.78 × 2,245.15
  4. Step 4: Simplify right side
    2,644.28x = 8,174,104.57
  5. Step 5: Solve for x
    x = 8,174,104.57/2,644.28
  6. Step 6: Final answer
    x = 3,091.24

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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.