Home / 2,131.62-3,194.94-962.21

Finding the Fourth Proportional to 2,131.62, 3,194.94 and 962.21

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Solution

The fourth proportional to 2,131.62, 3,194.94 and 962.21 is: 1,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.62 : 3,194.94 = 962.21 : x
  2. Step 2: Convert to fraction form
    2,131.62/3,194.94 = 962.21/x
  3. Step 3: Cross multiply
    2,131.62x = 3,194.94 × 962.21
  4. Step 4: Simplify right side
    2,131.62x = 3,074,214.81
  5. Step 5: Solve for x
    x = 3,074,214.81/2,131.62
  6. Step 6: Final answer
    x = 1,442.20

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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.