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Finding the Fourth Proportional to 1,893.40, 2,839.38 and 797.56

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Solution

The fourth proportional to 1,893.40, 2,839.38 and 797.56 is: 1,196.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.40 : 2,839.38 = 797.56 : x
  2. Step 2: Convert to fraction form
    1,893.40/2,839.38 = 797.56/x
  3. Step 3: Cross multiply
    1,893.40x = 2,839.38 × 797.56
  4. Step 4: Simplify right side
    1,893.40x = 2,264,575.91
  5. Step 5: Solve for x
    x = 2,264,575.91/1,893.40
  6. Step 6: Final answer
    x = 1,196.04

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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.