Home / 1,893.67-2,839.70-1,115.23

Finding the Fourth Proportional to 1,893.67, 2,839.70 and 1,115.23

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Solution

The fourth proportional to 1,893.67, 2,839.70 and 1,115.23 is: 1,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.67 : 2,839.70 = 1,115.23 : x
  2. Step 2: Convert to fraction form
    1,893.67/2,839.70 = 1,115.23/x
  3. Step 3: Cross multiply
    1,893.67x = 2,839.70 × 1,115.23
  4. Step 4: Simplify right side
    1,893.67x = 3,166,918.63
  5. Step 5: Solve for x
    x = 3,166,918.63/1,893.67
  6. Step 6: Final answer
    x = 1,672.37

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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.