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Finding the Fourth Proportional to 1,863.11, 2,794.51 and 630.50

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Solution

The fourth proportional to 1,863.11, 2,794.51 and 630.50 is: 945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.11 : 2,794.51 = 630.50 : x
  2. Step 2: Convert to fraction form
    1,863.11/2,794.51 = 630.50/x
  3. Step 3: Cross multiply
    1,863.11x = 2,794.51 × 630.50
  4. Step 4: Simplify right side
    1,863.11x = 1,761,923.01
  5. Step 5: Solve for x
    x = 1,761,923.01/1,863.11
  6. Step 6: Final answer
    x = 945.69

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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.