Home / 4,982.15-7,478.89-2,519.75

Finding the Fourth Proportional to 4,982.15, 7,478.89 and 2,519.75

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Solution

The fourth proportional to 4,982.15, 7,478.89 and 2,519.75 is: 3,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.15 : 7,478.89 = 2,519.75 : x
  2. Step 2: Convert to fraction form
    4,982.15/7,478.89 = 2,519.75/x
  3. Step 3: Cross multiply
    4,982.15x = 7,478.89 × 2,519.75
  4. Step 4: Simplify right side
    4,982.15x = 18,844,889.38
  5. Step 5: Solve for x
    x = 18,844,889.38/4,982.15
  6. Step 6: Final answer
    x = 3,782.49

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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.