Home / 2,181.06-3,270.75-719.82

Finding the Fourth Proportional to 2,181.06, 3,270.75 and 719.82

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Solution

The fourth proportional to 2,181.06, 3,270.75 and 719.82 is: 1,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.06 : 3,270.75 = 719.82 : x
  2. Step 2: Convert to fraction form
    2,181.06/3,270.75 = 719.82/x
  3. Step 3: Cross multiply
    2,181.06x = 3,270.75 × 719.82
  4. Step 4: Simplify right side
    2,181.06x = 2,354,351.27
  5. Step 5: Solve for x
    x = 2,354,351.27/2,181.06
  6. Step 6: Final answer
    x = 1,079.45

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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.