Home / 2,749.88-4,121.76-1,364.20

Finding the Fourth Proportional to 2,749.88, 4,121.76 and 1,364.20

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Solution

The fourth proportional to 2,749.88, 4,121.76 and 1,364.20 is: 2,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.88 : 4,121.76 = 1,364.20 : x
  2. Step 2: Convert to fraction form
    2,749.88/4,121.76 = 1,364.20/x
  3. Step 3: Cross multiply
    2,749.88x = 4,121.76 × 1,364.20
  4. Step 4: Simplify right side
    2,749.88x = 5,622,904.99
  5. Step 5: Solve for x
    x = 5,622,904.99/2,749.88
  6. Step 6: Final answer
    x = 2,044.78

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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.