Home / 2,651.63-3,976.44-2,130.35

Finding the Fourth Proportional to 2,651.63, 3,976.44 and 2,130.35

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Solution

The fourth proportional to 2,651.63, 3,976.44 and 2,130.35 is: 3,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.63 : 3,976.44 = 2,130.35 : x
  2. Step 2: Convert to fraction form
    2,651.63/3,976.44 = 2,130.35/x
  3. Step 3: Cross multiply
    2,651.63x = 3,976.44 × 2,130.35
  4. Step 4: Simplify right side
    2,651.63x = 8,471,183.75
  5. Step 5: Solve for x
    x = 8,471,183.75/2,651.63
  6. Step 6: Final answer
    x = 3,194.71

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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.