Home / 2,132.16-3,179.44-1,984.24

Finding the Fourth Proportional to 2,132.16, 3,179.44 and 1,984.24

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Solution

The fourth proportional to 2,132.16, 3,179.44 and 1,984.24 is: 2,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.16 : 3,179.44 = 1,984.24 : x
  2. Step 2: Convert to fraction form
    2,132.16/3,179.44 = 1,984.24/x
  3. Step 3: Cross multiply
    2,132.16x = 3,179.44 × 1,984.24
  4. Step 4: Simplify right side
    2,132.16x = 6,308,772.03
  5. Step 5: Solve for x
    x = 6,308,772.03/2,132.16
  6. Step 6: Final answer
    x = 2,958.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.