Home / 1,168.87-1,743.73-1,137.09

Finding the Fourth Proportional to 1,168.87, 1,743.73 and 1,137.09

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Solution

The fourth proportional to 1,168.87, 1,743.73 and 1,137.09 is: 1,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.87 : 1,743.73 = 1,137.09 : x
  2. Step 2: Convert to fraction form
    1,168.87/1,743.73 = 1,137.09/x
  3. Step 3: Cross multiply
    1,168.87x = 1,743.73 × 1,137.09
  4. Step 4: Simplify right side
    1,168.87x = 1,982,777.95
  5. Step 5: Solve for x
    x = 1,982,777.95/1,168.87
  6. Step 6: Final answer
    x = 1,696.32

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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.