Home / 2,197.35-3,291.66-1,272.33

Finding the Fourth Proportional to 2,197.35, 3,291.66 and 1,272.33

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Solution

The fourth proportional to 2,197.35, 3,291.66 and 1,272.33 is: 1,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.35 : 3,291.66 = 1,272.33 : x
  2. Step 2: Convert to fraction form
    2,197.35/3,291.66 = 1,272.33/x
  3. Step 3: Cross multiply
    2,197.35x = 3,291.66 × 1,272.33
  4. Step 4: Simplify right side
    2,197.35x = 4,188,077.77
  5. Step 5: Solve for x
    x = 4,188,077.77/2,197.35
  6. Step 6: Final answer
    x = 1,905.97

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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.