Home / 1,190.55-1,639.77-1,092.12

Finding the Fourth Proportional to 1,190.55, 1,639.77 and 1,092.12

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Solution

The fourth proportional to 1,190.55, 1,639.77 and 1,092.12 is: 1,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.55 : 1,639.77 = 1,092.12 : x
  2. Step 2: Convert to fraction form
    1,190.55/1,639.77 = 1,092.12/x
  3. Step 3: Cross multiply
    1,190.55x = 1,639.77 × 1,092.12
  4. Step 4: Simplify right side
    1,190.55x = 1,790,825.61
  5. Step 5: Solve for x
    x = 1,790,825.61/1,190.55
  6. Step 6: Final answer
    x = 1,504.20

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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.