Home / 5,199.56-7,175.88-2,842.05

Finding the Fourth Proportional to 5,199.56, 7,175.88 and 2,842.05

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Solution

The fourth proportional to 5,199.56, 7,175.88 and 2,842.05 is: 3,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.56 : 7,175.88 = 2,842.05 : x
  2. Step 2: Convert to fraction form
    5,199.56/7,175.88 = 2,842.05/x
  3. Step 3: Cross multiply
    5,199.56x = 7,175.88 × 2,842.05
  4. Step 4: Simplify right side
    5,199.56x = 20,394,209.75
  5. Step 5: Solve for x
    x = 20,394,209.75/5,199.56
  6. Step 6: Final answer
    x = 3,922.30

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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.