Home / 2,144.44-3,214.20-911.08

Finding the Fourth Proportional to 2,144.44, 3,214.20 and 911.08

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Solution

The fourth proportional to 2,144.44, 3,214.20 and 911.08 is: 1,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.44 : 3,214.20 = 911.08 : x
  2. Step 2: Convert to fraction form
    2,144.44/3,214.20 = 911.08/x
  3. Step 3: Cross multiply
    2,144.44x = 3,214.20 × 911.08
  4. Step 4: Simplify right side
    2,144.44x = 2,928,393.34
  5. Step 5: Solve for x
    x = 2,928,393.34/2,144.44
  6. Step 6: Final answer
    x = 1,365.57

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1.5x scale

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.