Home / 1,786.90-2,465.73-1,198.54

Finding the Fourth Proportional to 1,786.90, 2,465.73 and 1,198.54

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Solution

The fourth proportional to 1,786.90, 2,465.73 and 1,198.54 is: 1,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.90 : 2,465.73 = 1,198.54 : x
  2. Step 2: Convert to fraction form
    1,786.90/2,465.73 = 1,198.54/x
  3. Step 3: Cross multiply
    1,786.90x = 2,465.73 × 1,198.54
  4. Step 4: Simplify right side
    1,786.90x = 2,955,276.03
  5. Step 5: Solve for x
    x = 2,955,276.03/1,786.90
  6. Step 6: Final answer
    x = 1,653.86

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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.