Home / 3,240.68-4,851.78-2,198.44

Finding the Fourth Proportional to 3,240.68, 4,851.78 and 2,198.44

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Solution

The fourth proportional to 3,240.68, 4,851.78 and 2,198.44 is: 3,291.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.68 : 4,851.78 = 2,198.44 : x
  2. Step 2: Convert to fraction form
    3,240.68/4,851.78 = 2,198.44/x
  3. Step 3: Cross multiply
    3,240.68x = 4,851.78 × 2,198.44
  4. Step 4: Simplify right side
    3,240.68x = 10,666,347.22
  5. Step 5: Solve for x
    x = 10,666,347.22/3,240.68
  6. Step 6: Final answer
    x = 3,291.39

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1.5x scale

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.