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Finding the Fourth Proportional to 5,296.72, 7,945.11 and 1,790.68

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Solution

The fourth proportional to 5,296.72, 7,945.11 and 1,790.68 is: 2,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.72 : 7,945.11 = 1,790.68 : x
  2. Step 2: Convert to fraction form
    5,296.72/7,945.11 = 1,790.68/x
  3. Step 3: Cross multiply
    5,296.72x = 7,945.11 × 1,790.68
  4. Step 4: Simplify right side
    5,296.72x = 14,227,149.57
  5. Step 5: Solve for x
    x = 14,227,149.57/5,296.72
  6. Step 6: Final answer
    x = 2,686.03

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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.