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Finding the Fourth Proportional to 5,855.00, 8,782.22 and 2,156.97

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Solution

The fourth proportional to 5,855.00, 8,782.22 and 2,156.97 is: 3,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.00 : 8,782.22 = 2,156.97 : x
  2. Step 2: Convert to fraction form
    5,855.00/8,782.22 = 2,156.97/x
  3. Step 3: Cross multiply
    5,855.00x = 8,782.22 × 2,156.97
  4. Step 4: Simplify right side
    5,855.00x = 18,943,023.40
  5. Step 5: Solve for x
    x = 18,943,023.40/5,855.00
  6. Step 6: Final answer
    x = 3,235.36

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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.