Home / 1,945.44-2,919.30-712.94

Finding the Fourth Proportional to 1,945.44, 2,919.30 and 712.94

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Solution

The fourth proportional to 1,945.44, 2,919.30 and 712.94 is: 1,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.44 : 2,919.30 = 712.94 : x
  2. Step 2: Convert to fraction form
    1,945.44/2,919.30 = 712.94/x
  3. Step 3: Cross multiply
    1,945.44x = 2,919.30 × 712.94
  4. Step 4: Simplify right side
    1,945.44x = 2,081,285.80
  5. Step 5: Solve for x
    x = 2,081,285.80/1,945.44
  6. Step 6: Final answer
    x = 1,069.83

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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.