Home / 2,200.30-3,299.40-738.38

Finding the Fourth Proportional to 2,200.30, 3,299.40 and 738.38

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Solution

The fourth proportional to 2,200.30, 3,299.40 and 738.38 is: 1,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.30 : 3,299.40 = 738.38 : x
  2. Step 2: Convert to fraction form
    2,200.30/3,299.40 = 738.38/x
  3. Step 3: Cross multiply
    2,200.30x = 3,299.40 × 738.38
  4. Step 4: Simplify right side
    2,200.30x = 2,436,219.22
  5. Step 5: Solve for x
    x = 2,436,219.22/2,200.30
  6. Step 6: Final answer
    x = 1,107.22

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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.