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Finding the Fourth Proportional to 1,891.17, 2,837.30 and 794.97

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Solution

The fourth proportional to 1,891.17, 2,837.30 and 794.97 is: 1,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.17 : 2,837.30 = 794.97 : x
  2. Step 2: Convert to fraction form
    1,891.17/2,837.30 = 794.97/x
  3. Step 3: Cross multiply
    1,891.17x = 2,837.30 × 794.97
  4. Step 4: Simplify right side
    1,891.17x = 2,255,564.41
  5. Step 5: Solve for x
    x = 2,255,564.41/1,891.17
  6. Step 6: Final answer
    x = 1,192.68

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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.