Home / 3,201.90-4,420.36-2,212.49

Finding the Fourth Proportional to 3,201.90, 4,420.36 and 2,212.49

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Solution

The fourth proportional to 3,201.90, 4,420.36 and 2,212.49 is: 3,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.90 : 4,420.36 = 2,212.49 : x
  2. Step 2: Convert to fraction form
    3,201.90/4,420.36 = 2,212.49/x
  3. Step 3: Cross multiply
    3,201.90x = 4,420.36 × 2,212.49
  4. Step 4: Simplify right side
    3,201.90x = 9,779,991.23
  5. Step 5: Solve for x
    x = 9,779,991.23/3,201.90
  6. Step 6: Final answer
    x = 3,054.44

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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.