Home / 2,620.76-3,616.58-1,441.85

Finding the Fourth Proportional to 2,620.76, 3,616.58 and 1,441.85

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Solution

The fourth proportional to 2,620.76, 3,616.58 and 1,441.85 is: 1,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.76 : 3,616.58 = 1,441.85 : x
  2. Step 2: Convert to fraction form
    2,620.76/3,616.58 = 1,441.85/x
  3. Step 3: Cross multiply
    2,620.76x = 3,616.58 × 1,441.85
  4. Step 4: Simplify right side
    2,620.76x = 5,214,551.39
  5. Step 5: Solve for x
    x = 5,214,551.39/2,620.76
  6. Step 6: Final answer
    x = 1,989.71

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1.5x scale

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.