Home / 3,619.26-5,429.68-1,539.32

Finding the Fourth Proportional to 3,619.26, 5,429.68 and 1,539.32

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Solution

The fourth proportional to 3,619.26, 5,429.68 and 1,539.32 is: 2,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.26 : 5,429.68 = 1,539.32 : x
  2. Step 2: Convert to fraction form
    3,619.26/5,429.68 = 1,539.32/x
  3. Step 3: Cross multiply
    3,619.26x = 5,429.68 × 1,539.32
  4. Step 4: Simplify right side
    3,619.26x = 8,358,015.02
  5. Step 5: Solve for x
    x = 8,358,015.02/3,619.26
  6. Step 6: Final answer
    x = 2,309.32

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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.