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Finding the Fourth Proportional to 5,857.89, 8,786.79 and 2,392.71

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Solution

The fourth proportional to 5,857.89, 8,786.79 and 2,392.71 is: 3,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.89 : 8,786.79 = 2,392.71 : x
  2. Step 2: Convert to fraction form
    5,857.89/8,786.79 = 2,392.71/x
  3. Step 3: Cross multiply
    5,857.89x = 8,786.79 × 2,392.71
  4. Step 4: Simplify right side
    5,857.89x = 21,024,240.30
  5. Step 5: Solve for x
    x = 21,024,240.30/5,857.89
  6. Step 6: Final answer
    x = 3,589.05

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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.