Home / 5,855.29-8,786.36-2,160.09

Finding the Fourth Proportional to 5,855.29, 8,786.36 and 2,160.09

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Solution

The fourth proportional to 5,855.29, 8,786.36 and 2,160.09 is: 3,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.29 : 8,786.36 = 2,160.09 : x
  2. Step 2: Convert to fraction form
    5,855.29/8,786.36 = 2,160.09/x
  3. Step 3: Cross multiply
    5,855.29x = 8,786.36 × 2,160.09
  4. Step 4: Simplify right side
    5,855.29x = 18,979,333.77
  5. Step 5: Solve for x
    x = 18,979,333.77/5,855.29
  6. Step 6: Final answer
    x = 3,241.40

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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.