Home / 4,286.82-6,431.39-1,787.18

Finding the Fourth Proportional to 4,286.82, 6,431.39 and 1,787.18

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Solution

The fourth proportional to 4,286.82, 6,431.39 and 1,787.18 is: 2,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.82 : 6,431.39 = 1,787.18 : x
  2. Step 2: Convert to fraction form
    4,286.82/6,431.39 = 1,787.18/x
  3. Step 3: Cross multiply
    4,286.82x = 6,431.39 × 1,787.18
  4. Step 4: Simplify right side
    4,286.82x = 11,494,027.11
  5. Step 5: Solve for x
    x = 11,494,027.11/4,286.82
  6. Step 6: Final answer
    x = 2,681.25

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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.