Home / 3,975.80-5,961.37-1,201.64

Finding the Fourth Proportional to 3,975.80, 5,961.37 and 1,201.64

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Solution

The fourth proportional to 3,975.80, 5,961.37 and 1,201.64 is: 1,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.80 : 5,961.37 = 1,201.64 : x
  2. Step 2: Convert to fraction form
    3,975.80/5,961.37 = 1,201.64/x
  3. Step 3: Cross multiply
    3,975.80x = 5,961.37 × 1,201.64
  4. Step 4: Simplify right side
    3,975.80x = 7,163,420.65
  5. Step 5: Solve for x
    x = 7,163,420.65/3,975.80
  6. Step 6: Final answer
    x = 1,801.76

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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.