Home / 2,651.26-3,976.70-1,090.86

Finding the Fourth Proportional to 2,651.26, 3,976.70 and 1,090.86

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Solution

The fourth proportional to 2,651.26, 3,976.70 and 1,090.86 is: 1,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.26 : 3,976.70 = 1,090.86 : x
  2. Step 2: Convert to fraction form
    2,651.26/3,976.70 = 1,090.86/x
  3. Step 3: Cross multiply
    2,651.26x = 3,976.70 × 1,090.86
  4. Step 4: Simplify right side
    2,651.26x = 4,338,022.96
  5. Step 5: Solve for x
    x = 4,338,022.96/2,651.26
  6. Step 6: Final answer
    x = 1,636.21

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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.