Home / 2,181.03-3,271.80-699.73

Finding the Fourth Proportional to 2,181.03, 3,271.80 and 699.73

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Solution

The fourth proportional to 2,181.03, 3,271.80 and 699.73 is: 1,049.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.03 : 3,271.80 = 699.73 : x
  2. Step 2: Convert to fraction form
    2,181.03/3,271.80 = 699.73/x
  3. Step 3: Cross multiply
    2,181.03x = 3,271.80 × 699.73
  4. Step 4: Simplify right side
    2,181.03x = 2,289,376.61
  5. Step 5: Solve for x
    x = 2,289,376.61/2,181.03
  6. Step 6: Final answer
    x = 1,049.68

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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.