Home / 2,132.43-3,198.81-1,256.22

Finding the Fourth Proportional to 2,132.43, 3,198.81 and 1,256.22

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Solution

The fourth proportional to 2,132.43, 3,198.81 and 1,256.22 is: 1,884.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.43 : 3,198.81 = 1,256.22 : x
  2. Step 2: Convert to fraction form
    2,132.43/3,198.81 = 1,256.22/x
  3. Step 3: Cross multiply
    2,132.43x = 3,198.81 × 1,256.22
  4. Step 4: Simplify right side
    2,132.43x = 4,018,409.10
  5. Step 5: Solve for x
    x = 4,018,409.10/2,132.43
  6. Step 6: Final answer
    x = 1,884.43

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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.