Home / 2,977.14-4,466.01-1,221.78

Finding the Fourth Proportional to 2,977.14, 4,466.01 and 1,221.78

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Solution

The fourth proportional to 2,977.14, 4,466.01 and 1,221.78 is: 1,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.14 : 4,466.01 = 1,221.78 : x
  2. Step 2: Convert to fraction form
    2,977.14/4,466.01 = 1,221.78/x
  3. Step 3: Cross multiply
    2,977.14x = 4,466.01 × 1,221.78
  4. Step 4: Simplify right side
    2,977.14x = 5,456,481.70
  5. Step 5: Solve for x
    x = 5,456,481.70/2,977.14
  6. Step 6: Final answer
    x = 1,832.79

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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.