Home / 2,021.45-3,027.31-1,370.21

Finding the Fourth Proportional to 2,021.45, 3,027.31 and 1,370.21

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Solution

The fourth proportional to 2,021.45, 3,027.31 and 1,370.21 is: 2,052.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.45 : 3,027.31 = 1,370.21 : x
  2. Step 2: Convert to fraction form
    2,021.45/3,027.31 = 1,370.21/x
  3. Step 3: Cross multiply
    2,021.45x = 3,027.31 × 1,370.21
  4. Step 4: Simplify right side
    2,021.45x = 4,148,050.44
  5. Step 5: Solve for x
    x = 4,148,050.44/2,021.45
  6. Step 6: Final answer
    x = 2,052.02

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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.