Home / 3,619.37-5,429.09-1,977.30

Finding the Fourth Proportional to 3,619.37, 5,429.09 and 1,977.30

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Solution

The fourth proportional to 3,619.37, 5,429.09 and 1,977.30 is: 2,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.37 : 5,429.09 = 1,977.30 : x
  2. Step 2: Convert to fraction form
    3,619.37/5,429.09 = 1,977.30/x
  3. Step 3: Cross multiply
    3,619.37x = 5,429.09 × 1,977.30
  4. Step 4: Simplify right side
    3,619.37x = 10,734,944.60
  5. Step 5: Solve for x
    x = 10,734,944.60/3,619.37
  6. Step 6: Final answer
    x = 2,965.97

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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.