Home / 2,720.39-4,081.26-1,076.95

Finding the Fourth Proportional to 2,720.39, 4,081.26 and 1,076.95

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Solution

The fourth proportional to 2,720.39, 4,081.26 and 1,076.95 is: 1,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.39 : 4,081.26 = 1,076.95 : x
  2. Step 2: Convert to fraction form
    2,720.39/4,081.26 = 1,076.95/x
  3. Step 3: Cross multiply
    2,720.39x = 4,081.26 × 1,076.95
  4. Step 4: Simplify right side
    2,720.39x = 4,395,296.11
  5. Step 5: Solve for x
    x = 4,395,296.11/2,720.39
  6. Step 6: Final answer
    x = 1,615.69

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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.