Home / 2,638.13-3,640.43-1,519.03

Finding the Fourth Proportional to 2,638.13, 3,640.43 and 1,519.03

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Solution

The fourth proportional to 2,638.13, 3,640.43 and 1,519.03 is: 2,096.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.13 : 3,640.43 = 1,519.03 : x
  2. Step 2: Convert to fraction form
    2,638.13/3,640.43 = 1,519.03/x
  3. Step 3: Cross multiply
    2,638.13x = 3,640.43 × 1,519.03
  4. Step 4: Simplify right side
    2,638.13x = 5,529,896.59
  5. Step 5: Solve for x
    x = 5,529,896.59/2,638.13
  6. Step 6: Final answer
    x = 2,096.14

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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.