Home / 1,200.54-1,790.44-1,172.60

Finding the Fourth Proportional to 1,200.54, 1,790.44 and 1,172.60

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Solution

The fourth proportional to 1,200.54, 1,790.44 and 1,172.60 is: 1,748.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200.54 : 1,790.44 = 1,172.60 : x
  2. Step 2: Convert to fraction form
    1,200.54/1,790.44 = 1,172.60/x
  3. Step 3: Cross multiply
    1,200.54x = 1,790.44 × 1,172.60
  4. Step 4: Simplify right side
    1,200.54x = 2,099,469.94
  5. Step 5: Solve for x
    x = 2,099,469.94/1,200.54
  6. Step 6: Final answer
    x = 1,748.77

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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.