Home / 5,144.24-7,099.10-2,786.42

Finding the Fourth Proportional to 5,144.24, 7,099.10 and 2,786.42

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Solution

The fourth proportional to 5,144.24, 7,099.10 and 2,786.42 is: 3,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.24 : 7,099.10 = 2,786.42 : x
  2. Step 2: Convert to fraction form
    5,144.24/7,099.10 = 2,786.42/x
  3. Step 3: Cross multiply
    5,144.24x = 7,099.10 × 2,786.42
  4. Step 4: Simplify right side
    5,144.24x = 19,781,074.22
  5. Step 5: Solve for x
    x = 19,781,074.22/5,144.24
  6. Step 6: Final answer
    x = 3,845.29

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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.