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Finding the Fourth Proportional to 5,187.16, 7,779.04 and 1,676.34

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Solution

The fourth proportional to 5,187.16, 7,779.04 and 1,676.34 is: 2,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.16 : 7,779.04 = 1,676.34 : x
  2. Step 2: Convert to fraction form
    5,187.16/7,779.04 = 1,676.34/x
  3. Step 3: Cross multiply
    5,187.16x = 7,779.04 × 1,676.34
  4. Step 4: Simplify right side
    5,187.16x = 13,040,311.72
  5. Step 5: Solve for x
    x = 13,040,311.72/5,187.16
  6. Step 6: Final answer
    x = 2,513.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.