Home / 2,197.22-3,283.23-2,156.18

Finding the Fourth Proportional to 2,197.22, 3,283.23 and 2,156.18

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Solution

The fourth proportional to 2,197.22, 3,283.23 and 2,156.18 is: 3,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.22 : 3,283.23 = 2,156.18 : x
  2. Step 2: Convert to fraction form
    2,197.22/3,283.23 = 2,156.18/x
  3. Step 3: Cross multiply
    2,197.22x = 3,283.23 × 2,156.18
  4. Step 4: Simplify right side
    2,197.22x = 7,079,224.08
  5. Step 5: Solve for x
    x = 7,079,224.08/2,197.22
  6. Step 6: Final answer
    x = 3,221.90

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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.