Home / 3,174.80-4,763.64-1,327.28

Finding the Fourth Proportional to 3,174.80, 4,763.64 and 1,327.28

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Solution

The fourth proportional to 3,174.80, 4,763.64 and 1,327.28 is: 1,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.80 : 4,763.64 = 1,327.28 : x
  2. Step 2: Convert to fraction form
    3,174.80/4,763.64 = 1,327.28/x
  3. Step 3: Cross multiply
    3,174.80x = 4,763.64 × 1,327.28
  4. Step 4: Simplify right side
    3,174.80x = 6,322,684.10
  5. Step 5: Solve for x
    x = 6,322,684.10/3,174.80
  6. Step 6: Final answer
    x = 1,991.52

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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.