Home / 3,619.08-5,429.43-1,427.76

Finding the Fourth Proportional to 3,619.08, 5,429.43 and 1,427.76

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Solution

The fourth proportional to 3,619.08, 5,429.43 and 1,427.76 is: 2,141.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.08 : 5,429.43 = 1,427.76 : x
  2. Step 2: Convert to fraction form
    3,619.08/5,429.43 = 1,427.76/x
  3. Step 3: Cross multiply
    3,619.08x = 5,429.43 × 1,427.76
  4. Step 4: Simplify right side
    3,619.08x = 7,751,922.98
  5. Step 5: Solve for x
    x = 7,751,922.98/3,619.08
  6. Step 6: Final answer
    x = 2,141.96

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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.