Home / 2,181.99-3,273.80-1,012.55

Finding the Fourth Proportional to 2,181.99, 3,273.80 and 1,012.55

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Solution

The fourth proportional to 2,181.99, 3,273.80 and 1,012.55 is: 1,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.99 : 3,273.80 = 1,012.55 : x
  2. Step 2: Convert to fraction form
    2,181.99/3,273.80 = 1,012.55/x
  3. Step 3: Cross multiply
    2,181.99x = 3,273.80 × 1,012.55
  4. Step 4: Simplify right side
    2,181.99x = 3,314,889.31
  5. Step 5: Solve for x
    x = 3,314,889.31/2,181.99
  6. Step 6: Final answer
    x = 1,519.20

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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.