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Finding the Fourth Proportional to 5,676.56, 8,511.84 and 1,779.92

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Solution

The fourth proportional to 5,676.56, 8,511.84 and 1,779.92 is: 2,668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.56 : 8,511.84 = 1,779.92 : x
  2. Step 2: Convert to fraction form
    5,676.56/8,511.84 = 1,779.92/x
  3. Step 3: Cross multiply
    5,676.56x = 8,511.84 × 1,779.92
  4. Step 4: Simplify right side
    5,676.56x = 15,150,394.25
  5. Step 5: Solve for x
    x = 15,150,394.25/5,676.56
  6. Step 6: Final answer
    x = 2,668.94

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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.