Home / 3,391.98-5,090.34-2,221.92

Finding the Fourth Proportional to 3,391.98, 5,090.34 and 2,221.92

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Solution

The fourth proportional to 3,391.98, 5,090.34 and 2,221.92 is: 3,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.98 : 5,090.34 = 2,221.92 : x
  2. Step 2: Convert to fraction form
    3,391.98/5,090.34 = 2,221.92/x
  3. Step 3: Cross multiply
    3,391.98x = 5,090.34 × 2,221.92
  4. Step 4: Simplify right side
    3,391.98x = 11,310,328.25
  5. Step 5: Solve for x
    x = 11,310,328.25/3,391.98
  6. Step 6: Final answer
    x = 3,334.43

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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.