Home / 2,022.45-3,012.80-1,961.26

Finding the Fourth Proportional to 2,022.45, 3,012.80 and 1,961.26

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Solution

The fourth proportional to 2,022.45, 3,012.80 and 1,961.26 is: 2,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.45 : 3,012.80 = 1,961.26 : x
  2. Step 2: Convert to fraction form
    2,022.45/3,012.80 = 1,961.26/x
  3. Step 3: Cross multiply
    2,022.45x = 3,012.80 × 1,961.26
  4. Step 4: Simplify right side
    2,022.45x = 5,908,884.13
  5. Step 5: Solve for x
    x = 5,908,884.13/2,022.45
  6. Step 6: Final answer
    x = 2,921.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.