Home / 1,787.27-2,680.79-537.83

Finding the Fourth Proportional to 1,787.27, 2,680.79 and 537.83

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Solution

The fourth proportional to 1,787.27, 2,680.79 and 537.83 is: 806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.27 : 2,680.79 = 537.83 : x
  2. Step 2: Convert to fraction form
    1,787.27/2,680.79 = 537.83/x
  3. Step 3: Cross multiply
    1,787.27x = 2,680.79 × 537.83
  4. Step 4: Simplify right side
    1,787.27x = 1,441,809.29
  5. Step 5: Solve for x
    x = 1,441,809.29/1,787.27
  6. Step 6: Final answer
    x = 806.71

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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.