Home / 3,847.50-5,311.48-2,994.88

Finding the Fourth Proportional to 3,847.50, 5,311.48 and 2,994.88

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Solution

The fourth proportional to 3,847.50, 5,311.48 and 2,994.88 is: 4,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.50 : 5,311.48 = 2,994.88 : x
  2. Step 2: Convert to fraction form
    3,847.50/5,311.48 = 2,994.88/x
  3. Step 3: Cross multiply
    3,847.50x = 5,311.48 × 2,994.88
  4. Step 4: Simplify right side
    3,847.50x = 15,907,239.43
  5. Step 5: Solve for x
    x = 15,907,239.43/3,847.50
  6. Step 6: Final answer
    x = 4,134.43

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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.