Home / 2,190.44-3,021.90-1,445.24

Finding the Fourth Proportional to 2,190.44, 3,021.90 and 1,445.24

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Solution

The fourth proportional to 2,190.44, 3,021.90 and 1,445.24 is: 1,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.44 : 3,021.90 = 1,445.24 : x
  2. Step 2: Convert to fraction form
    2,190.44/3,021.90 = 1,445.24/x
  3. Step 3: Cross multiply
    2,190.44x = 3,021.90 × 1,445.24
  4. Step 4: Simplify right side
    2,190.44x = 4,367,370.76
  5. Step 5: Solve for x
    x = 4,367,370.76/2,190.44
  6. Step 6: Final answer
    x = 1,993.83

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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.