Home / 5,197.78-7,790.10-2,272.60

Finding the Fourth Proportional to 5,197.78, 7,790.10 and 2,272.60

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Solution

The fourth proportional to 5,197.78, 7,790.10 and 2,272.60 is: 3,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.78 : 7,790.10 = 2,272.60 : x
  2. Step 2: Convert to fraction form
    5,197.78/7,790.10 = 2,272.60/x
  3. Step 3: Cross multiply
    5,197.78x = 7,790.10 × 2,272.60
  4. Step 4: Simplify right side
    5,197.78x = 17,703,781.26
  5. Step 5: Solve for x
    x = 17,703,781.26/5,197.78
  6. Step 6: Final answer
    x = 3,406.03

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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.