Home / 2,022.20-2,790.46-1,137.88

Finding the Fourth Proportional to 2,022.20, 2,790.46 and 1,137.88

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Solution

The fourth proportional to 2,022.20, 2,790.46 and 1,137.88 is: 1,570.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.20 : 2,790.46 = 1,137.88 : x
  2. Step 2: Convert to fraction form
    2,022.20/2,790.46 = 1,137.88/x
  3. Step 3: Cross multiply
    2,022.20x = 2,790.46 × 1,137.88
  4. Step 4: Simplify right side
    2,022.20x = 3,175,208.62
  5. Step 5: Solve for x
    x = 3,175,208.62/2,022.20
  6. Step 6: Final answer
    x = 1,570.18

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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.