Home / 2,213.42-3,321.30-914.60

Finding the Fourth Proportional to 2,213.42, 3,321.30 and 914.60

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Solution

The fourth proportional to 2,213.42, 3,321.30 and 914.60 is: 1,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.42 : 3,321.30 = 914.60 : x
  2. Step 2: Convert to fraction form
    2,213.42/3,321.30 = 914.60/x
  3. Step 3: Cross multiply
    2,213.42x = 3,321.30 × 914.60
  4. Step 4: Simplify right side
    2,213.42x = 3,037,660.98
  5. Step 5: Solve for x
    x = 3,037,660.98/2,213.42
  6. Step 6: Final answer
    x = 1,372.38

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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.