Home / 3,807.21-5,249.16-2,912.04

Finding the Fourth Proportional to 3,807.21, 5,249.16 and 2,912.04

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Solution

The fourth proportional to 3,807.21, 5,249.16 and 2,912.04 is: 4,014.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.21 : 5,249.16 = 2,912.04 : x
  2. Step 2: Convert to fraction form
    3,807.21/5,249.16 = 2,912.04/x
  3. Step 3: Cross multiply
    3,807.21x = 5,249.16 × 2,912.04
  4. Step 4: Simplify right side
    3,807.21x = 15,285,763.89
  5. Step 5: Solve for x
    x = 15,285,763.89/3,807.21
  6. Step 6: Final answer
    x = 4,014.95

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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.