Home / 3,298.19-4,942.32-1,321.85

Finding the Fourth Proportional to 3,298.19, 4,942.32 and 1,321.85

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Solution

The fourth proportional to 3,298.19, 4,942.32 and 1,321.85 is: 1,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.19 : 4,942.32 = 1,321.85 : x
  2. Step 2: Convert to fraction form
    3,298.19/4,942.32 = 1,321.85/x
  3. Step 3: Cross multiply
    3,298.19x = 4,942.32 × 1,321.85
  4. Step 4: Simplify right side
    3,298.19x = 6,532,999.08
  5. Step 5: Solve for x
    x = 6,532,999.08/3,298.19
  6. Step 6: Final answer
    x = 1,980.79

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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.