Home / 2,022.22-2,790.63-1,138.02

Finding the Fourth Proportional to 2,022.22, 2,790.63 and 1,138.02

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Solution

The fourth proportional to 2,022.22, 2,790.63 and 1,138.02 is: 1,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.22 : 2,790.63 = 1,138.02 : x
  2. Step 2: Convert to fraction form
    2,022.22/2,790.63 = 1,138.02/x
  3. Step 3: Cross multiply
    2,022.22x = 2,790.63 × 1,138.02
  4. Step 4: Simplify right side
    2,022.22x = 3,175,778.80
  5. Step 5: Solve for x
    x = 3,175,778.80/2,022.22
  6. Step 6: Final answer
    x = 1,570.45

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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.