Home / 3,172.51-4,758-1,198.33

Finding the Fourth Proportional to 3,172.51, 4,758 and 1,198.33

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Solution

The fourth proportional to 3,172.51, 4,758 and 1,198.33 is: 1,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.51 : 4,758 = 1,198.33 : x
  2. Step 2: Convert to fraction form
    3,172.51/4,758 = 1,198.33/x
  3. Step 3: Cross multiply
    3,172.51x = 4,758 × 1,198.33
  4. Step 4: Simplify right side
    3,172.51x = 5,701,630.35
  5. Step 5: Solve for x
    x = 5,701,630.35/3,172.51
  6. Step 6: Final answer
    x = 1,797.20

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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.