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Finding the Fourth Proportional to 1,891.44, 2,610.29 and 1,105.94

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Solution

The fourth proportional to 1,891.44, 2,610.29 and 1,105.94 is: 1,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.44 : 2,610.29 = 1,105.94 : x
  2. Step 2: Convert to fraction form
    1,891.44/2,610.29 = 1,105.94/x
  3. Step 3: Cross multiply
    1,891.44x = 2,610.29 × 1,105.94
  4. Step 4: Simplify right side
    1,891.44x = 2,886,824.12
  5. Step 5: Solve for x
    x = 2,886,824.12/1,891.44
  6. Step 6: Final answer
    x = 1,526.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.