Home / 1,190.39-1,796.23-1,145.39

Finding the Fourth Proportional to 1,190.39, 1,796.23 and 1,145.39

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Solution

The fourth proportional to 1,190.39, 1,796.23 and 1,145.39 is: 1,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.39 : 1,796.23 = 1,145.39 : x
  2. Step 2: Convert to fraction form
    1,190.39/1,796.23 = 1,145.39/x
  3. Step 3: Cross multiply
    1,190.39x = 1,796.23 × 1,145.39
  4. Step 4: Simplify right side
    1,190.39x = 2,057,383.88
  5. Step 5: Solve for x
    x = 2,057,383.88/1,190.39
  6. Step 6: Final answer
    x = 1,728.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.