Home / 2,619.26-3,930.20-1,631.77

Finding the Fourth Proportional to 2,619.26, 3,930.20 and 1,631.77

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Solution

The fourth proportional to 2,619.26, 3,930.20 and 1,631.77 is: 2,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.26 : 3,930.20 = 1,631.77 : x
  2. Step 2: Convert to fraction form
    2,619.26/3,930.20 = 1,631.77/x
  3. Step 3: Cross multiply
    2,619.26x = 3,930.20 × 1,631.77
  4. Step 4: Simplify right side
    2,619.26x = 6,413,170.59
  5. Step 5: Solve for x
    x = 6,413,170.59/2,619.26
  6. Step 6: Final answer
    x = 2,448.47

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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.