Home / 2,631.98-3,942.59-1,641.54

Finding the Fourth Proportional to 2,631.98, 3,942.59 and 1,641.54

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Solution

The fourth proportional to 2,631.98, 3,942.59 and 1,641.54 is: 2,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.98 : 3,942.59 = 1,641.54 : x
  2. Step 2: Convert to fraction form
    2,631.98/3,942.59 = 1,641.54/x
  3. Step 3: Cross multiply
    2,631.98x = 3,942.59 × 1,641.54
  4. Step 4: Simplify right side
    2,631.98x = 6,471,910.98
  5. Step 5: Solve for x
    x = 6,471,910.98/2,631.98
  6. Step 6: Final answer
    x = 2,458.96

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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.