Home / 2,220.32-3,328.26-758.48

Finding the Fourth Proportional to 2,220.32, 3,328.26 and 758.48

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Solution

The fourth proportional to 2,220.32, 3,328.26 and 758.48 is: 1,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.32 : 3,328.26 = 758.48 : x
  2. Step 2: Convert to fraction form
    2,220.32/3,328.26 = 758.48/x
  3. Step 3: Cross multiply
    2,220.32x = 3,328.26 × 758.48
  4. Step 4: Simplify right side
    2,220.32x = 2,524,418.64
  5. Step 5: Solve for x
    x = 2,524,418.64/2,220.32
  6. Step 6: Final answer
    x = 1,136.96

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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.