Home / 5,199.80-7,176.21-2,842.29

Finding the Fourth Proportional to 5,199.80, 7,176.21 and 2,842.29

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Solution

The fourth proportional to 5,199.80, 7,176.21 and 2,842.29 is: 3,922.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.80 : 7,176.21 = 2,842.29 : x
  2. Step 2: Convert to fraction form
    5,199.80/7,176.21 = 2,842.29/x
  3. Step 3: Cross multiply
    5,199.80x = 7,176.21 × 2,842.29
  4. Step 4: Simplify right side
    5,199.80x = 20,396,859.26
  5. Step 5: Solve for x
    x = 20,396,859.26/5,199.80
  6. Step 6: Final answer
    x = 3,922.63

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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.