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Finding the Fourth Proportional to 5,786.90, 8,673.78 and 2,660.44

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Solution

The fourth proportional to 5,786.90, 8,673.78 and 2,660.44 is: 3,987.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.90 : 8,673.78 = 2,660.44 : x
  2. Step 2: Convert to fraction form
    5,786.90/8,673.78 = 2,660.44/x
  3. Step 3: Cross multiply
    5,786.90x = 8,673.78 × 2,660.44
  4. Step 4: Simplify right side
    5,786.90x = 23,076,072.13
  5. Step 5: Solve for x
    x = 23,076,072.13/5,786.90
  6. Step 6: Final answer
    x = 3,987.64

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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.