Home / 3,640.92-5,021.37-2,315.04

Finding the Fourth Proportional to 3,640.92, 5,021.37 and 2,315.04

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Solution

The fourth proportional to 3,640.92, 5,021.37 and 2,315.04 is: 3,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.92 : 5,021.37 = 2,315.04 : x
  2. Step 2: Convert to fraction form
    3,640.92/5,021.37 = 2,315.04/x
  3. Step 3: Cross multiply
    3,640.92x = 5,021.37 × 2,315.04
  4. Step 4: Simplify right side
    3,640.92x = 11,624,672.40
  5. Step 5: Solve for x
    x = 11,624,672.40/3,640.92
  6. Step 6: Final answer
    x = 3,192.78

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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.