Home / 3,968.44-5,476.57-2,289.92

Finding the Fourth Proportional to 3,968.44, 5,476.57 and 2,289.92

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Solution

The fourth proportional to 3,968.44, 5,476.57 and 2,289.92 is: 3,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.44 : 5,476.57 = 2,289.92 : x
  2. Step 2: Convert to fraction form
    3,968.44/5,476.57 = 2,289.92/x
  3. Step 3: Cross multiply
    3,968.44x = 5,476.57 × 2,289.92
  4. Step 4: Simplify right side
    3,968.44x = 12,540,874.07
  5. Step 5: Solve for x
    x = 12,540,874.07/3,968.44
  6. Step 6: Final answer
    x = 3,160.15

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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.