Home / 2,171.62-3,266.66-1,968.63

Finding the Fourth Proportional to 2,171.62, 3,266.66 and 1,968.63

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Solution

The fourth proportional to 2,171.62, 3,266.66 and 1,968.63 is: 2,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.62 : 3,266.66 = 1,968.63 : x
  2. Step 2: Convert to fraction form
    2,171.62/3,266.66 = 1,968.63/x
  3. Step 3: Cross multiply
    2,171.62x = 3,266.66 × 1,968.63
  4. Step 4: Simplify right side
    2,171.62x = 6,430,844.88
  5. Step 5: Solve for x
    x = 6,430,844.88/2,171.62
  6. Step 6: Final answer
    x = 2,961.31

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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.