Home / 1,189.55-1,772.96-1,187.73

Finding the Fourth Proportional to 1,189.55, 1,772.96 and 1,187.73

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Solution

The fourth proportional to 1,189.55, 1,772.96 and 1,187.73 is: 1,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189.55 : 1,772.96 = 1,187.73 : x
  2. Step 2: Convert to fraction form
    1,189.55/1,772.96 = 1,187.73/x
  3. Step 3: Cross multiply
    1,189.55x = 1,772.96 × 1,187.73
  4. Step 4: Simplify right side
    1,189.55x = 2,105,791.84
  5. Step 5: Solve for x
    x = 2,105,791.84/1,189.55
  6. Step 6: Final answer
    x = 1,770.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.