Home / 3,148.44-4,720.84-2,109.64

Finding the Fourth Proportional to 3,148.44, 4,720.84 and 2,109.64

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Solution

The fourth proportional to 3,148.44, 4,720.84 and 2,109.64 is: 3,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.44 : 4,720.84 = 2,109.64 : x
  2. Step 2: Convert to fraction form
    3,148.44/4,720.84 = 2,109.64/x
  3. Step 3: Cross multiply
    3,148.44x = 4,720.84 × 2,109.64
  4. Step 4: Simplify right side
    3,148.44x = 9,959,272.90
  5. Step 5: Solve for x
    x = 9,959,272.90/3,148.44
  6. Step 6: Final answer
    x = 3,163.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.