Home / 3,147.88-4,334.12-2,399.44

Finding the Fourth Proportional to 3,147.88, 4,334.12 and 2,399.44

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Solution

The fourth proportional to 3,147.88, 4,334.12 and 2,399.44 is: 3,303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.88 : 4,334.12 = 2,399.44 : x
  2. Step 2: Convert to fraction form
    3,147.88/4,334.12 = 2,399.44/x
  3. Step 3: Cross multiply
    3,147.88x = 4,334.12 × 2,399.44
  4. Step 4: Simplify right side
    3,147.88x = 10,399,460.89
  5. Step 5: Solve for x
    x = 10,399,460.89/3,147.88
  6. Step 6: Final answer
    x = 3,303.64

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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.