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Finding the Fourth Proportional to 3,891.22, 5,835.60 and 1,550.56

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Solution

The fourth proportional to 3,891.22, 5,835.60 and 1,550.56 is: 2,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.22 : 5,835.60 = 1,550.56 : x
  2. Step 2: Convert to fraction form
    3,891.22/5,835.60 = 1,550.56/x
  3. Step 3: Cross multiply
    3,891.22x = 5,835.60 × 1,550.56
  4. Step 4: Simplify right side
    3,891.22x = 9,048,447.94
  5. Step 5: Solve for x
    x = 9,048,447.94/3,891.22
  6. Step 6: Final answer
    x = 2,325.35

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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.