Home / 5,272.26-7,911.15-3,422.94

Finding the Fourth Proportional to 5,272.26, 7,911.15 and 3,422.94

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Solution

The fourth proportional to 5,272.26, 7,911.15 and 3,422.94 is: 5,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.26 : 7,911.15 = 3,422.94 : x
  2. Step 2: Convert to fraction form
    5,272.26/7,911.15 = 3,422.94/x
  3. Step 3: Cross multiply
    5,272.26x = 7,911.15 × 3,422.94
  4. Step 4: Simplify right side
    5,272.26x = 27,079,391.78
  5. Step 5: Solve for x
    x = 27,079,391.78/5,272.26
  6. Step 6: Final answer
    x = 5,136.20

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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.