Home / 2,650.36-3,976.32-1,189.24

Finding the Fourth Proportional to 2,650.36, 3,976.32 and 1,189.24

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Solution

The fourth proportional to 2,650.36, 3,976.32 and 1,189.24 is: 1,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.36 : 3,976.32 = 1,189.24 : x
  2. Step 2: Convert to fraction form
    2,650.36/3,976.32 = 1,189.24/x
  3. Step 3: Cross multiply
    2,650.36x = 3,976.32 × 1,189.24
  4. Step 4: Simplify right side
    2,650.36x = 4,728,798.80
  5. Step 5: Solve for x
    x = 4,728,798.80/2,650.36
  6. Step 6: Final answer
    x = 1,784.21

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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.