Home / 7,131.78-10,698.03-2,201.94

Finding the Fourth Proportional to 7,131.78, 10,698.03 and 2,201.94

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Solution

The fourth proportional to 7,131.78, 10,698.03 and 2,201.94 is: 3,303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.78 : 10,698.03 = 2,201.94 : x
  2. Step 2: Convert to fraction form
    7,131.78/10,698.03 = 2,201.94/x
  3. Step 3: Cross multiply
    7,131.78x = 10,698.03 × 2,201.94
  4. Step 4: Simplify right side
    7,131.78x = 23,556,420.18
  5. Step 5: Solve for x
    x = 23,556,420.18/7,131.78
  6. Step 6: Final answer
    x = 3,303.02

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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.