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Finding the Fourth Proportional to 1,893.01, 2,839.28 and 660.32

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Solution

The fourth proportional to 1,893.01, 2,839.28 and 660.32 is: 990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.01 : 2,839.28 = 660.32 : x
  2. Step 2: Convert to fraction form
    1,893.01/2,839.28 = 660.32/x
  3. Step 3: Cross multiply
    1,893.01x = 2,839.28 × 660.32
  4. Step 4: Simplify right side
    1,893.01x = 1,874,815.87
  5. Step 5: Solve for x
    x = 1,874,815.87/1,893.01
  6. Step 6: Final answer
    x = 990.39

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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.