Home / 2,723.63-3,755.97-1,980.05

Finding the Fourth Proportional to 2,723.63, 3,755.97 and 1,980.05

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Solution

The fourth proportional to 2,723.63, 3,755.97 and 1,980.05 is: 2,730.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.63 : 3,755.97 = 1,980.05 : x
  2. Step 2: Convert to fraction form
    2,723.63/3,755.97 = 1,980.05/x
  3. Step 3: Cross multiply
    2,723.63x = 3,755.97 × 1,980.05
  4. Step 4: Simplify right side
    2,723.63x = 7,436,989.62
  5. Step 5: Solve for x
    x = 7,436,989.62/2,723.63
  6. Step 6: Final answer
    x = 2,730.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.