Home / 4,091.44-6,139.68-1,783.12

Finding the Fourth Proportional to 4,091.44, 6,139.68 and 1,783.12

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Solution

The fourth proportional to 4,091.44, 6,139.68 and 1,783.12 is: 2,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.44 : 6,139.68 = 1,783.12 : x
  2. Step 2: Convert to fraction form
    4,091.44/6,139.68 = 1,783.12/x
  3. Step 3: Cross multiply
    4,091.44x = 6,139.68 × 1,783.12
  4. Step 4: Simplify right side
    4,091.44x = 10,947,786.20
  5. Step 5: Solve for x
    x = 10,947,786.20/4,091.44
  6. Step 6: Final answer
    x = 2,675.78

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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.