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Finding the Fourth Proportional to 5,550.78, 8,323.10 and 1,850.99

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Solution

The fourth proportional to 5,550.78, 8,323.10 and 1,850.99 is: 2,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.78 : 8,323.10 = 1,850.99 : x
  2. Step 2: Convert to fraction form
    5,550.78/8,323.10 = 1,850.99/x
  3. Step 3: Cross multiply
    5,550.78x = 8,323.10 × 1,850.99
  4. Step 4: Simplify right side
    5,550.78x = 15,405,986.42
  5. Step 5: Solve for x
    x = 15,405,986.42/5,550.78
  6. Step 6: Final answer
    x = 2,775.46

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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.