Home / 3,849.80-5,306.45-3,009.02

Finding the Fourth Proportional to 3,849.80, 5,306.45 and 3,009.02

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Solution

The fourth proportional to 3,849.80, 5,306.45 and 3,009.02 is: 4,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.80 : 5,306.45 = 3,009.02 : x
  2. Step 2: Convert to fraction form
    3,849.80/5,306.45 = 3,009.02/x
  3. Step 3: Cross multiply
    3,849.80x = 5,306.45 × 3,009.02
  4. Step 4: Simplify right side
    3,849.80x = 15,967,172.60
  5. Step 5: Solve for x
    x = 15,967,172.60/3,849.80
  6. Step 6: Final answer
    x = 4,147.54

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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.