Home / 2,022.09-2,790.28-1,138.04

Finding the Fourth Proportional to 2,022.09, 2,790.28 and 1,138.04

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Solution

The fourth proportional to 2,022.09, 2,790.28 and 1,138.04 is: 1,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.09 : 2,790.28 = 1,138.04 : x
  2. Step 2: Convert to fraction form
    2,022.09/2,790.28 = 1,138.04/x
  3. Step 3: Cross multiply
    2,022.09x = 2,790.28 × 1,138.04
  4. Step 4: Simplify right side
    2,022.09x = 3,175,450.25
  5. Step 5: Solve for x
    x = 3,175,450.25/2,022.09
  6. Step 6: Final answer
    x = 1,570.38

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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.