Home / 5,199.95-7,175.82-2,842.11

Finding the Fourth Proportional to 5,199.95, 7,175.82 and 2,842.11

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Solution

The fourth proportional to 5,199.95, 7,175.82 and 2,842.11 is: 3,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.95 : 7,175.82 = 2,842.11 : x
  2. Step 2: Convert to fraction form
    5,199.95/7,175.82 = 2,842.11/x
  3. Step 3: Cross multiply
    5,199.95x = 7,175.82 × 2,842.11
  4. Step 4: Simplify right side
    5,199.95x = 20,394,458.95
  5. Step 5: Solve for x
    x = 20,394,458.95/5,199.95
  6. Step 6: Final answer
    x = 3,922.05

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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.