Home / 2,921.36-4,383.41-1,277.69

Finding the Fourth Proportional to 2,921.36, 4,383.41 and 1,277.69

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Solution

The fourth proportional to 2,921.36, 4,383.41 and 1,277.69 is: 1,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.36 : 4,383.41 = 1,277.69 : x
  2. Step 2: Convert to fraction form
    2,921.36/4,383.41 = 1,277.69/x
  3. Step 3: Cross multiply
    2,921.36x = 4,383.41 × 1,277.69
  4. Step 4: Simplify right side
    2,921.36x = 5,600,632.73
  5. Step 5: Solve for x
    x = 5,600,632.73/2,921.36
  6. Step 6: Final answer
    x = 1,917.13

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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.