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Finding the Fourth Proportional to 5,453.25, 8,138.69 and 4,928.37

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Solution

The fourth proportional to 5,453.25, 8,138.69 and 4,928.37 is: 7,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.25 : 8,138.69 = 4,928.37 : x
  2. Step 2: Convert to fraction form
    5,453.25/8,138.69 = 4,928.37/x
  3. Step 3: Cross multiply
    5,453.25x = 8,138.69 × 4,928.37
  4. Step 4: Simplify right side
    5,453.25x = 40,110,450.99
  5. Step 5: Solve for x
    x = 40,110,450.99/5,453.25
  6. Step 6: Final answer
    x = 7,355.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.