Home / 4,986.20-7,480.36-2,488.73

Finding the Fourth Proportional to 4,986.20, 7,480.36 and 2,488.73

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Solution

The fourth proportional to 4,986.20, 7,480.36 and 2,488.73 is: 3,733.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.20 : 7,480.36 = 2,488.73 : x
  2. Step 2: Convert to fraction form
    4,986.20/7,480.36 = 2,488.73/x
  3. Step 3: Cross multiply
    4,986.20x = 7,480.36 × 2,488.73
  4. Step 4: Simplify right side
    4,986.20x = 18,616,555.05
  5. Step 5: Solve for x
    x = 18,616,555.05/4,986.20
  6. Step 6: Final answer
    x = 3,733.62

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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.