Home / 2,197.29-3,293.41-1,221.45

Finding the Fourth Proportional to 2,197.29, 3,293.41 and 1,221.45

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Solution

The fourth proportional to 2,197.29, 3,293.41 and 1,221.45 is: 1,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.29 : 3,293.41 = 1,221.45 : x
  2. Step 2: Convert to fraction form
    2,197.29/3,293.41 = 1,221.45/x
  3. Step 3: Cross multiply
    2,197.29x = 3,293.41 × 1,221.45
  4. Step 4: Simplify right side
    2,197.29x = 4,022,735.64
  5. Step 5: Solve for x
    x = 4,022,735.64/2,197.29
  6. Step 6: Final answer
    x = 1,830.77

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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.