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Finding the Fourth Proportional to 1,863.24, 2,794.84 and 476.57

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Solution

The fourth proportional to 1,863.24, 2,794.84 and 476.57 is: 714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.24 : 2,794.84 = 476.57 : x
  2. Step 2: Convert to fraction form
    1,863.24/2,794.84 = 476.57/x
  3. Step 3: Cross multiply
    1,863.24x = 2,794.84 × 476.57
  4. Step 4: Simplify right side
    1,863.24x = 1,331,936.90
  5. Step 5: Solve for x
    x = 1,331,936.90/1,863.24
  6. Step 6: Final answer
    x = 714.85

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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.