Home / 2,749.61-4,121.46-1,190.36

Finding the Fourth Proportional to 2,749.61, 4,121.46 and 1,190.36

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Solution

The fourth proportional to 2,749.61, 4,121.46 and 1,190.36 is: 1,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.61 : 4,121.46 = 1,190.36 : x
  2. Step 2: Convert to fraction form
    2,749.61/4,121.46 = 1,190.36/x
  3. Step 3: Cross multiply
    2,749.61x = 4,121.46 × 1,190.36
  4. Step 4: Simplify right side
    2,749.61x = 4,906,021.13
  5. Step 5: Solve for x
    x = 4,906,021.13/2,749.61
  6. Step 6: Final answer
    x = 1,784.26

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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.