Home / 1,964.54-2,951.36-1,272.60

Finding the Fourth Proportional to 1,964.54, 2,951.36 and 1,272.60

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Solution

The fourth proportional to 1,964.54, 2,951.36 and 1,272.60 is: 1,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.54 : 2,951.36 = 1,272.60 : x
  2. Step 2: Convert to fraction form
    1,964.54/2,951.36 = 1,272.60/x
  3. Step 3: Cross multiply
    1,964.54x = 2,951.36 × 1,272.60
  4. Step 4: Simplify right side
    1,964.54x = 3,755,894.37
  5. Step 5: Solve for x
    x = 3,755,894.37/1,964.54
  6. Step 6: Final answer
    x = 1,911.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.