Home / 2,640.25-3,623.42-2,391.04

Finding the Fourth Proportional to 2,640.25, 3,623.42 and 2,391.04

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Solution

The fourth proportional to 2,640.25, 3,623.42 and 2,391.04 is: 3,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.25 : 3,623.42 = 2,391.04 : x
  2. Step 2: Convert to fraction form
    2,640.25/3,623.42 = 2,391.04/x
  3. Step 3: Cross multiply
    2,640.25x = 3,623.42 × 2,391.04
  4. Step 4: Simplify right side
    2,640.25x = 8,663,742.16
  5. Step 5: Solve for x
    x = 8,663,742.16/2,640.25
  6. Step 6: Final answer
    x = 3,281.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.