Home / 2,221.93-3,330.62-1,122.96

Finding the Fourth Proportional to 2,221.93, 3,330.62 and 1,122.96

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Solution

The fourth proportional to 2,221.93, 3,330.62 and 1,122.96 is: 1,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.93 : 3,330.62 = 1,122.96 : x
  2. Step 2: Convert to fraction form
    2,221.93/3,330.62 = 1,122.96/x
  3. Step 3: Cross multiply
    2,221.93x = 3,330.62 × 1,122.96
  4. Step 4: Simplify right side
    2,221.93x = 3,740,164.12
  5. Step 5: Solve for x
    x = 3,740,164.12/2,221.93
  6. Step 6: Final answer
    x = 1,683.29

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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.