Home / 2,669.32-4,004.60-820.44

Finding the Fourth Proportional to 2,669.32, 4,004.60 and 820.44

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Solution

The fourth proportional to 2,669.32, 4,004.60 and 820.44 is: 1,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.32 : 4,004.60 = 820.44 : x
  2. Step 2: Convert to fraction form
    2,669.32/4,004.60 = 820.44/x
  3. Step 3: Cross multiply
    2,669.32x = 4,004.60 × 820.44
  4. Step 4: Simplify right side
    2,669.32x = 3,285,534.02
  5. Step 5: Solve for x
    x = 3,285,534.02/2,669.32
  6. Step 6: Final answer
    x = 1,230.85

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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.