Home / 2,418.75-3,338.28-1,371.42

Finding the Fourth Proportional to 2,418.75, 3,338.28 and 1,371.42

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Solution

The fourth proportional to 2,418.75, 3,338.28 and 1,371.42 is: 1,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.75 : 3,338.28 = 1,371.42 : x
  2. Step 2: Convert to fraction form
    2,418.75/3,338.28 = 1,371.42/x
  3. Step 3: Cross multiply
    2,418.75x = 3,338.28 × 1,371.42
  4. Step 4: Simplify right side
    2,418.75x = 4,578,183.96
  5. Step 5: Solve for x
    x = 4,578,183.96/2,418.75
  6. Step 6: Final answer
    x = 1,892.79

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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.