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Finding the Fourth Proportional to 5,295.68, 7,945.96 and 2,698.80

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Solution

The fourth proportional to 5,295.68, 7,945.96 and 2,698.80 is: 4,049.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.68 : 7,945.96 = 2,698.80 : x
  2. Step 2: Convert to fraction form
    5,295.68/7,945.96 = 2,698.80/x
  3. Step 3: Cross multiply
    5,295.68x = 7,945.96 × 2,698.80
  4. Step 4: Simplify right side
    5,295.68x = 21,444,556.85
  5. Step 5: Solve for x
    x = 21,444,556.85/5,295.68
  6. Step 6: Final answer
    x = 4,049.44

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1.5x scale

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.