Home / 2,025.80-3,032.30-1,961.80

Finding the Fourth Proportional to 2,025.80, 3,032.30 and 1,961.80

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Solution

The fourth proportional to 2,025.80, 3,032.30 and 1,961.80 is: 2,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.80 : 3,032.30 = 1,961.80 : x
  2. Step 2: Convert to fraction form
    2,025.80/3,032.30 = 1,961.80/x
  3. Step 3: Cross multiply
    2,025.80x = 3,032.30 × 1,961.80
  4. Step 4: Simplify right side
    2,025.80x = 5,948,766.14
  5. Step 5: Solve for x
    x = 5,948,766.14/2,025.80
  6. Step 6: Final answer
    x = 2,936.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.