Home / 5,422.99-8,135.13-1,912.27

Finding the Fourth Proportional to 5,422.99, 8,135.13 and 1,912.27

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Solution

The fourth proportional to 5,422.99, 8,135.13 and 1,912.27 is: 2,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.99 : 8,135.13 = 1,912.27 : x
  2. Step 2: Convert to fraction form
    5,422.99/8,135.13 = 1,912.27/x
  3. Step 3: Cross multiply
    5,422.99x = 8,135.13 × 1,912.27
  4. Step 4: Simplify right side
    5,422.99x = 15,556,578.57
  5. Step 5: Solve for x
    x = 15,556,578.57/5,422.99
  6. Step 6: Final answer
    x = 2,868.63

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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.