Home / 2,620.76-3,616.75-1,441.90

Finding the Fourth Proportional to 2,620.76, 3,616.75 and 1,441.90

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Solution

The fourth proportional to 2,620.76, 3,616.75 and 1,441.90 is: 1,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.76 : 3,616.75 = 1,441.90 : x
  2. Step 2: Convert to fraction form
    2,620.76/3,616.75 = 1,441.90/x
  3. Step 3: Cross multiply
    2,620.76x = 3,616.75 × 1,441.90
  4. Step 4: Simplify right side
    2,620.76x = 5,214,998.15
  5. Step 5: Solve for x
    x = 5,214,998.15/2,620.76
  6. Step 6: Final answer
    x = 1,989.88

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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.