Home / 2,999.38-4,135.65-2,438.14

Finding the Fourth Proportional to 2,999.38, 4,135.65 and 2,438.14

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Solution

The fourth proportional to 2,999.38, 4,135.65 and 2,438.14 is: 3,361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.38 : 4,135.65 = 2,438.14 : x
  2. Step 2: Convert to fraction form
    2,999.38/4,135.65 = 2,438.14/x
  3. Step 3: Cross multiply
    2,999.38x = 4,135.65 × 2,438.14
  4. Step 4: Simplify right side
    2,999.38x = 10,083,293.69
  5. Step 5: Solve for x
    x = 10,083,293.69/2,999.38
  6. Step 6: Final answer
    x = 3,361.79

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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.