Home / 5,200.62-7,176.78-2,842.77

Finding the Fourth Proportional to 5,200.62, 7,176.78 and 2,842.77

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Solution

The fourth proportional to 5,200.62, 7,176.78 and 2,842.77 is: 3,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.62 : 7,176.78 = 2,842.77 : x
  2. Step 2: Convert to fraction form
    5,200.62/7,176.78 = 2,842.77/x
  3. Step 3: Cross multiply
    5,200.62x = 7,176.78 × 2,842.77
  4. Step 4: Simplify right side
    5,200.62x = 20,401,934.88
  5. Step 5: Solve for x
    x = 20,401,934.88/5,200.62
  6. Step 6: Final answer
    x = 3,922.98

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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.