Home / 2,438.26-3,354.17-2,138.15

Finding the Fourth Proportional to 2,438.26, 3,354.17 and 2,138.15

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Solution

The fourth proportional to 2,438.26, 3,354.17 and 2,138.15 is: 2,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.26 : 3,354.17 = 2,138.15 : x
  2. Step 2: Convert to fraction form
    2,438.26/3,354.17 = 2,138.15/x
  3. Step 3: Cross multiply
    2,438.26x = 3,354.17 × 2,138.15
  4. Step 4: Simplify right side
    2,438.26x = 7,171,716.28
  5. Step 5: Solve for x
    x = 7,171,716.28/2,438.26
  6. Step 6: Final answer
    x = 2,941.33

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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.