Home / 1,984.88-2,738.70-1,198.77

Finding the Fourth Proportional to 1,984.88, 2,738.70 and 1,198.77

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Solution

The fourth proportional to 1,984.88, 2,738.70 and 1,198.77 is: 1,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.88 : 2,738.70 = 1,198.77 : x
  2. Step 2: Convert to fraction form
    1,984.88/2,738.70 = 1,198.77/x
  3. Step 3: Cross multiply
    1,984.88x = 2,738.70 × 1,198.77
  4. Step 4: Simplify right side
    1,984.88x = 3,283,071.40
  5. Step 5: Solve for x
    x = 3,283,071.40/1,984.88
  6. Step 6: Final answer
    x = 1,654.04

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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.