Home / 2,022.40-2,793.60-1,945.60

Finding the Fourth Proportional to 2,022.40, 2,793.60 and 1,945.60

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Solution

The fourth proportional to 2,022.40, 2,793.60 and 1,945.60 is: 2,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.40 : 2,793.60 = 1,945.60 : x
  2. Step 2: Convert to fraction form
    2,022.40/2,793.60 = 1,945.60/x
  3. Step 3: Cross multiply
    2,022.40x = 2,793.60 × 1,945.60
  4. Step 4: Simplify right side
    2,022.40x = 5,435,228.16
  5. Step 5: Solve for x
    x = 5,435,228.16/2,022.40
  6. Step 6: Final answer
    x = 2,687.51

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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.