Home / 7,091.73-9,785.10-4,107.38

Finding the Fourth Proportional to 7,091.73, 9,785.10 and 4,107.38

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Solution

The fourth proportional to 7,091.73, 9,785.10 and 4,107.38 is: 5,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.73 : 9,785.10 = 4,107.38 : x
  2. Step 2: Convert to fraction form
    7,091.73/9,785.10 = 4,107.38/x
  3. Step 3: Cross multiply
    7,091.73x = 9,785.10 × 4,107.38
  4. Step 4: Simplify right side
    7,091.73x = 40,191,143.37
  5. Step 5: Solve for x
    x = 40,191,143.37/7,091.73
  6. Step 6: Final answer
    x = 5,667.33

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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.