Home / 2,418.27-3,338.33-1,980.87

Finding the Fourth Proportional to 2,418.27, 3,338.33 and 1,980.87

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Solution

The fourth proportional to 2,418.27, 3,338.33 and 1,980.87 is: 2,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.27 : 3,338.33 = 1,980.87 : x
  2. Step 2: Convert to fraction form
    2,418.27/3,338.33 = 1,980.87/x
  3. Step 3: Cross multiply
    2,418.27x = 3,338.33 × 1,980.87
  4. Step 4: Simplify right side
    2,418.27x = 6,612,787.84
  5. Step 5: Solve for x
    x = 6,612,787.84/2,418.27
  6. Step 6: Final answer
    x = 2,734.51

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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.