Home / 2,845.82-3,928.62-2,206.32

Finding the Fourth Proportional to 2,845.82, 3,928.62 and 2,206.32

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Solution

The fourth proportional to 2,845.82, 3,928.62 and 2,206.32 is: 3,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.82 : 3,928.62 = 2,206.32 : x
  2. Step 2: Convert to fraction form
    2,845.82/3,928.62 = 2,206.32/x
  3. Step 3: Cross multiply
    2,845.82x = 3,928.62 × 2,206.32
  4. Step 4: Simplify right side
    2,845.82x = 8,667,762.20
  5. Step 5: Solve for x
    x = 8,667,762.20/2,845.82
  6. Step 6: Final answer
    x = 3,045.79

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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.