Home / 4,884.80-7,321.92-1,806.56

Finding the Fourth Proportional to 4,884.80, 7,321.92 and 1,806.56

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Solution

The fourth proportional to 4,884.80, 7,321.92 and 1,806.56 is: 2,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,884.80 : 7,321.92 = 1,806.56 : x
  2. Step 2: Convert to fraction form
    4,884.80/7,321.92 = 1,806.56/x
  3. Step 3: Cross multiply
    4,884.80x = 7,321.92 × 1,806.56
  4. Step 4: Simplify right side
    4,884.80x = 13,227,487.80
  5. Step 5: Solve for x
    x = 13,227,487.80/4,884.80
  6. Step 6: Final answer
    x = 2,707.89

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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.