Home / 1,253.73-1,730.35-1,198.36

Finding the Fourth Proportional to 1,253.73, 1,730.35 and 1,198.36

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Solution

The fourth proportional to 1,253.73, 1,730.35 and 1,198.36 is: 1,653.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.73 : 1,730.35 = 1,198.36 : x
  2. Step 2: Convert to fraction form
    1,253.73/1,730.35 = 1,198.36/x
  3. Step 3: Cross multiply
    1,253.73x = 1,730.35 × 1,198.36
  4. Step 4: Simplify right side
    1,253.73x = 2,073,589.13
  5. Step 5: Solve for x
    x = 2,073,589.13/1,253.73
  6. Step 6: Final answer
    x = 1,653.94

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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.