Home / 3,449.55-5,163.30-2,720.55

Finding the Fourth Proportional to 3,449.55, 5,163.30 and 2,720.55

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Solution

The fourth proportional to 3,449.55, 5,163.30 and 2,720.55 is: 4,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.55 : 5,163.30 = 2,720.55 : x
  2. Step 2: Convert to fraction form
    3,449.55/5,163.30 = 2,720.55/x
  3. Step 3: Cross multiply
    3,449.55x = 5,163.30 × 2,720.55
  4. Step 4: Simplify right side
    3,449.55x = 14,047,015.82
  5. Step 5: Solve for x
    x = 14,047,015.82/3,449.55
  6. Step 6: Final answer
    x = 4,072.13

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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.