Home / 2,022.63-2,790.92-1,138.41

Finding the Fourth Proportional to 2,022.63, 2,790.92 and 1,138.41

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Solution

The fourth proportional to 2,022.63, 2,790.92 and 1,138.41 is: 1,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.63 : 2,790.92 = 1,138.41 : x
  2. Step 2: Convert to fraction form
    2,022.63/2,790.92 = 1,138.41/x
  3. Step 3: Cross multiply
    2,022.63x = 2,790.92 × 1,138.41
  4. Step 4: Simplify right side
    2,022.63x = 3,177,211.24
  5. Step 5: Solve for x
    x = 3,177,211.24/2,022.63
  6. Step 6: Final answer
    x = 1,570.83

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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.