Home / 3,511.80-4,849.20-2,338.20

Finding the Fourth Proportional to 3,511.80, 4,849.20 and 2,338.20

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Solution

The fourth proportional to 3,511.80, 4,849.20 and 2,338.20 is: 3,228.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.80 : 4,849.20 = 2,338.20 : x
  2. Step 2: Convert to fraction form
    3,511.80/4,849.20 = 2,338.20/x
  3. Step 3: Cross multiply
    3,511.80x = 4,849.20 × 2,338.20
  4. Step 4: Simplify right side
    3,511.80x = 11,338,399.44
  5. Step 5: Solve for x
    x = 11,338,399.44/3,511.80
  6. Step 6: Final answer
    x = 3,228.66

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1.5x scale

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.