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Finding the Fourth Proportional to 2,219.56, 3,329.64 and 758.32

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Solution

The fourth proportional to 2,219.56, 3,329.64 and 758.32 is: 1,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.56 : 3,329.64 = 758.32 : x
  2. Step 2: Convert to fraction form
    2,219.56/3,329.64 = 758.32/x
  3. Step 3: Cross multiply
    2,219.56x = 3,329.64 × 758.32
  4. Step 4: Simplify right side
    2,219.56x = 2,524,932.60
  5. Step 5: Solve for x
    x = 2,524,932.60/2,219.56
  6. Step 6: Final answer
    x = 1,137.58

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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.