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Finding the Fourth Proportional to 2,219.54, 3,329.62 and 738.27

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Solution

The fourth proportional to 2,219.54, 3,329.62 and 738.27 is: 1,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.54 : 3,329.62 = 738.27 : x
  2. Step 2: Convert to fraction form
    2,219.54/3,329.62 = 738.27/x
  3. Step 3: Cross multiply
    2,219.54x = 3,329.62 × 738.27
  4. Step 4: Simplify right side
    2,219.54x = 2,458,156.71
  5. Step 5: Solve for x
    x = 2,458,156.71/2,219.54
  6. Step 6: Final answer
    x = 1,107.51

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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.