Home / 4,089.75-5,643.87-2,226.75

Finding the Fourth Proportional to 4,089.75, 5,643.87 and 2,226.75

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Solution

The fourth proportional to 4,089.75, 5,643.87 and 2,226.75 is: 3,072.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.75 : 5,643.87 = 2,226.75 : x
  2. Step 2: Convert to fraction form
    4,089.75/5,643.87 = 2,226.75/x
  3. Step 3: Cross multiply
    4,089.75x = 5,643.87 × 2,226.75
  4. Step 4: Simplify right side
    4,089.75x = 12,567,487.52
  5. Step 5: Solve for x
    x = 12,567,487.52/4,089.75
  6. Step 6: Final answer
    x = 3,072.92

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Half scale
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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.