Home / 3,221.03-4,443.62-1,945.43

Finding the Fourth Proportional to 3,221.03, 4,443.62 and 1,945.43

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Solution

The fourth proportional to 3,221.03, 4,443.62 and 1,945.43 is: 2,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.03 : 4,443.62 = 1,945.43 : x
  2. Step 2: Convert to fraction form
    3,221.03/4,443.62 = 1,945.43/x
  3. Step 3: Cross multiply
    3,221.03x = 4,443.62 × 1,945.43
  4. Step 4: Simplify right side
    3,221.03x = 8,644,719.71
  5. Step 5: Solve for x
    x = 8,644,719.71/3,221.03
  6. Step 6: Final answer
    x = 2,683.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.