Home / 3,619.08-5,429.70-2,079

Finding the Fourth Proportional to 3,619.08, 5,429.70 and 2,079

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Solution

The fourth proportional to 3,619.08, 5,429.70 and 2,079 is: 3,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.08 : 5,429.70 = 2,079 : x
  2. Step 2: Convert to fraction form
    3,619.08/5,429.70 = 2,079/x
  3. Step 3: Cross multiply
    3,619.08x = 5,429.70 × 2,079
  4. Step 4: Simplify right side
    3,619.08x = 11,288,346.30
  5. Step 5: Solve for x
    x = 11,288,346.30/3,619.08
  6. Step 6: Final answer
    x = 3,119.12

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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.