Home / 2,218.14-3,328.70-1,396.98

Finding the Fourth Proportional to 2,218.14, 3,328.70 and 1,396.98

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Solution

The fourth proportional to 2,218.14, 3,328.70 and 1,396.98 is: 2,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.14 : 3,328.70 = 1,396.98 : x
  2. Step 2: Convert to fraction form
    2,218.14/3,328.70 = 1,396.98/x
  3. Step 3: Cross multiply
    2,218.14x = 3,328.70 × 1,396.98
  4. Step 4: Simplify right side
    2,218.14x = 4,650,120.34
  5. Step 5: Solve for x
    x = 4,650,120.34/2,218.14
  6. Step 6: Final answer
    x = 2,096.41

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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.