Home / 3,847.75-5,310.16-2,901.88

Finding the Fourth Proportional to 3,847.75, 5,310.16 and 2,901.88

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Solution

The fourth proportional to 3,847.75, 5,310.16 and 2,901.88 is: 4,004.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.75 : 5,310.16 = 2,901.88 : x
  2. Step 2: Convert to fraction form
    3,847.75/5,310.16 = 2,901.88/x
  3. Step 3: Cross multiply
    3,847.75x = 5,310.16 × 2,901.88
  4. Step 4: Simplify right side
    3,847.75x = 15,409,416.61
  5. Step 5: Solve for x
    x = 15,409,416.61/3,847.75
  6. Step 6: Final answer
    x = 4,004.78

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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.