Home / 7,212.78-10,818.36-2,019.06

Finding the Fourth Proportional to 7,212.78, 10,818.36 and 2,019.06

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Solution

The fourth proportional to 7,212.78, 10,818.36 and 2,019.06 is: 3,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.78 : 10,818.36 = 2,019.06 : x
  2. Step 2: Convert to fraction form
    7,212.78/10,818.36 = 2,019.06/x
  3. Step 3: Cross multiply
    7,212.78x = 10,818.36 × 2,019.06
  4. Step 4: Simplify right side
    7,212.78x = 21,842,917.94
  5. Step 5: Solve for x
    x = 21,842,917.94/7,212.78
  6. Step 6: Final answer
    x = 3,028.36

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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.