Home / 5,197.26-7,172.22-2,839.42

Finding the Fourth Proportional to 5,197.26, 7,172.22 and 2,839.42

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Solution

The fourth proportional to 5,197.26, 7,172.22 and 2,839.42 is: 3,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.26 : 7,172.22 = 2,839.42 : x
  2. Step 2: Convert to fraction form
    5,197.26/7,172.22 = 2,839.42/x
  3. Step 3: Cross multiply
    5,197.26x = 7,172.22 × 2,839.42
  4. Step 4: Simplify right side
    5,197.26x = 20,364,944.91
  5. Step 5: Solve for x
    x = 20,364,944.91/5,197.26
  6. Step 6: Final answer
    x = 3,918.40

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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.