Home / 1,441.40-2,150.45-1,285.57

Finding the Fourth Proportional to 1,441.40, 2,150.45 and 1,285.57

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Solution

The fourth proportional to 1,441.40, 2,150.45 and 1,285.57 is: 1,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.40 : 2,150.45 = 1,285.57 : x
  2. Step 2: Convert to fraction form
    1,441.40/2,150.45 = 1,285.57/x
  3. Step 3: Cross multiply
    1,441.40x = 2,150.45 × 1,285.57
  4. Step 4: Simplify right side
    1,441.40x = 2,764,555.09
  5. Step 5: Solve for x
    x = 2,764,555.09/1,441.40
  6. Step 6: Final answer
    x = 1,917.97

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Double scale
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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.