Home / 2,787.82-4,182.33-1,618.58

Finding the Fourth Proportional to 2,787.82, 4,182.33 and 1,618.58

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Solution

The fourth proportional to 2,787.82, 4,182.33 and 1,618.58 is: 2,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.82 : 4,182.33 = 1,618.58 : x
  2. Step 2: Convert to fraction form
    2,787.82/4,182.33 = 1,618.58/x
  3. Step 3: Cross multiply
    2,787.82x = 4,182.33 × 1,618.58
  4. Step 4: Simplify right side
    2,787.82x = 6,769,452.22
  5. Step 5: Solve for x
    x = 6,769,452.22/2,787.82
  6. Step 6: Final answer
    x = 2,428.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.