Home / 2,022.34-2,790.82-1,138.14

Finding the Fourth Proportional to 2,022.34, 2,790.82 and 1,138.14

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Solution

The fourth proportional to 2,022.34, 2,790.82 and 1,138.14 is: 1,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.34 : 2,790.82 = 1,138.14 : x
  2. Step 2: Convert to fraction form
    2,022.34/2,790.82 = 1,138.14/x
  3. Step 3: Cross multiply
    2,022.34x = 2,790.82 × 1,138.14
  4. Step 4: Simplify right side
    2,022.34x = 3,176,336.12
  5. Step 5: Solve for x
    x = 3,176,336.12/2,022.34
  6. Step 6: Final answer
    x = 1,570.63

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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.