Home / 2,982.44-4,118.82-2,235.21

Finding the Fourth Proportional to 2,982.44, 4,118.82 and 2,235.21

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Solution

The fourth proportional to 2,982.44, 4,118.82 and 2,235.21 is: 3,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.44 : 4,118.82 = 2,235.21 : x
  2. Step 2: Convert to fraction form
    2,982.44/4,118.82 = 2,235.21/x
  3. Step 3: Cross multiply
    2,982.44x = 4,118.82 × 2,235.21
  4. Step 4: Simplify right side
    2,982.44x = 9,206,445.85
  5. Step 5: Solve for x
    x = 9,206,445.85/2,982.44
  6. Step 6: Final answer
    x = 3,086.89

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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.