Home / 3,849.51-5,771.86-1,627.20

Finding the Fourth Proportional to 3,849.51, 5,771.86 and 1,627.20

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Solution

The fourth proportional to 3,849.51, 5,771.86 and 1,627.20 is: 2,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.51 : 5,771.86 = 1,627.20 : x
  2. Step 2: Convert to fraction form
    3,849.51/5,771.86 = 1,627.20/x
  3. Step 3: Cross multiply
    3,849.51x = 5,771.86 × 1,627.20
  4. Step 4: Simplify right side
    3,849.51x = 9,391,970.59
  5. Step 5: Solve for x
    x = 9,391,970.59/3,849.51
  6. Step 6: Final answer
    x = 2,439.78

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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.