Home / 2,181.44-3,276.36-1,869.80

Finding the Fourth Proportional to 2,181.44, 3,276.36 and 1,869.80

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Solution

The fourth proportional to 2,181.44, 3,276.36 and 1,869.80 is: 2,808.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.44 : 3,276.36 = 1,869.80 : x
  2. Step 2: Convert to fraction form
    2,181.44/3,276.36 = 1,869.80/x
  3. Step 3: Cross multiply
    2,181.44x = 3,276.36 × 1,869.80
  4. Step 4: Simplify right side
    2,181.44x = 6,126,121.55
  5. Step 5: Solve for x
    x = 6,126,121.55/2,181.44
  6. Step 6: Final answer
    x = 2,808.29

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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.