Home / 2,197.35-3,280.36-2,120.44

Finding the Fourth Proportional to 2,197.35, 3,280.36 and 2,120.44

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Solution

The fourth proportional to 2,197.35, 3,280.36 and 2,120.44 is: 3,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.35 : 3,280.36 = 2,120.44 : x
  2. Step 2: Convert to fraction form
    2,197.35/3,280.36 = 2,120.44/x
  3. Step 3: Cross multiply
    2,197.35x = 3,280.36 × 2,120.44
  4. Step 4: Simplify right side
    2,197.35x = 6,955,806.56
  5. Step 5: Solve for x
    x = 6,955,806.56/2,197.35
  6. Step 6: Final answer
    x = 3,165.54

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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.