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Finding the Fourth Proportional to 1,889.31, 2,832.88 and 733.71

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Solution

The fourth proportional to 1,889.31, 2,832.88 and 733.71 is: 1,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.31 : 2,832.88 = 733.71 : x
  2. Step 2: Convert to fraction form
    1,889.31/2,832.88 = 733.71/x
  3. Step 3: Cross multiply
    1,889.31x = 2,832.88 × 733.71
  4. Step 4: Simplify right side
    1,889.31x = 2,078,508.72
  5. Step 5: Solve for x
    x = 2,078,508.72/1,889.31
  6. Step 6: Final answer
    x = 1,100.14

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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.