Home / 1,747.80-2,620.32-1,198.35

Finding the Fourth Proportional to 1,747.80, 2,620.32 and 1,198.35

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Solution

The fourth proportional to 1,747.80, 2,620.32 and 1,198.35 is: 1,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.80 : 2,620.32 = 1,198.35 : x
  2. Step 2: Convert to fraction form
    1,747.80/2,620.32 = 1,198.35/x
  3. Step 3: Cross multiply
    1,747.80x = 2,620.32 × 1,198.35
  4. Step 4: Simplify right side
    1,747.80x = 3,140,055.98
  5. Step 5: Solve for x
    x = 3,140,055.98/1,747.80
  6. Step 6: Final answer
    x = 1,796.58

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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.