Home / 2,221.30-3,327.90-1,354.60

Finding the Fourth Proportional to 2,221.30, 3,327.90 and 1,354.60

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Solution

The fourth proportional to 2,221.30, 3,327.90 and 1,354.60 is: 2,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.30 : 3,327.90 = 1,354.60 : x
  2. Step 2: Convert to fraction form
    2,221.30/3,327.90 = 1,354.60/x
  3. Step 3: Cross multiply
    2,221.30x = 3,327.90 × 1,354.60
  4. Step 4: Simplify right side
    2,221.30x = 4,507,973.34
  5. Step 5: Solve for x
    x = 4,507,973.34/2,221.30
  6. Step 6: Final answer
    x = 2,029.43

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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.