Home / 3,830.45-5,288.03-2,578.09

Finding the Fourth Proportional to 3,830.45, 5,288.03 and 2,578.09

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Solution

The fourth proportional to 3,830.45, 5,288.03 and 2,578.09 is: 3,559.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.45 : 5,288.03 = 2,578.09 : x
  2. Step 2: Convert to fraction form
    3,830.45/5,288.03 = 2,578.09/x
  3. Step 3: Cross multiply
    3,830.45x = 5,288.03 × 2,578.09
  4. Step 4: Simplify right side
    3,830.45x = 13,632,990.82
  5. Step 5: Solve for x
    x = 13,632,990.82/3,830.45
  6. Step 6: Final answer
    x = 3,559.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.