Home / 2,218.86-3,329.08-1,396.22

Finding the Fourth Proportional to 2,218.86, 3,329.08 and 1,396.22

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Solution

The fourth proportional to 2,218.86, 3,329.08 and 1,396.22 is: 2,094.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.86 : 3,329.08 = 1,396.22 : x
  2. Step 2: Convert to fraction form
    2,218.86/3,329.08 = 1,396.22/x
  3. Step 3: Cross multiply
    2,218.86x = 3,329.08 × 1,396.22
  4. Step 4: Simplify right side
    2,218.86x = 4,648,128.08
  5. Step 5: Solve for x
    x = 4,648,128.08/2,218.86
  6. Step 6: Final answer
    x = 2,094.83

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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.