Home / 1,863.24-2,811.51-1,787.37

Finding the Fourth Proportional to 1,863.24, 2,811.51 and 1,787.37

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Solution

The fourth proportional to 1,863.24, 2,811.51 and 1,787.37 is: 2,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.24 : 2,811.51 = 1,787.37 : x
  2. Step 2: Convert to fraction form
    1,863.24/2,811.51 = 1,787.37/x
  3. Step 3: Cross multiply
    1,863.24x = 2,811.51 × 1,787.37
  4. Step 4: Simplify right side
    1,863.24x = 5,025,198.09
  5. Step 5: Solve for x
    x = 5,025,198.09/1,863.24
  6. Step 6: Final answer
    x = 2,697.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.