Home / 2,270.35-3,133.45-2,122.12

Finding the Fourth Proportional to 2,270.35, 3,133.45 and 2,122.12

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Solution

The fourth proportional to 2,270.35, 3,133.45 and 2,122.12 is: 2,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.35 : 3,133.45 = 2,122.12 : x
  2. Step 2: Convert to fraction form
    2,270.35/3,133.45 = 2,122.12/x
  3. Step 3: Cross multiply
    2,270.35x = 3,133.45 × 2,122.12
  4. Step 4: Simplify right side
    2,270.35x = 6,649,556.91
  5. Step 5: Solve for x
    x = 6,649,556.91/2,270.35
  6. Step 6: Final answer
    x = 2,928.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.