Home / 1,787.19-2,464.17-1,538.09

Finding the Fourth Proportional to 1,787.19, 2,464.17 and 1,538.09

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Solution

The fourth proportional to 1,787.19, 2,464.17 and 1,538.09 is: 2,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.19 : 2,464.17 = 1,538.09 : x
  2. Step 2: Convert to fraction form
    1,787.19/2,464.17 = 1,538.09/x
  3. Step 3: Cross multiply
    1,787.19x = 2,464.17 × 1,538.09
  4. Step 4: Simplify right side
    1,787.19x = 3,790,102.91
  5. Step 5: Solve for x
    x = 3,790,102.91/1,787.19
  6. Step 6: Final answer
    x = 2,120.71

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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.