Home / 3,422.45-4,723.31-2,163.56

Finding the Fourth Proportional to 3,422.45, 4,723.31 and 2,163.56

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Solution

The fourth proportional to 3,422.45, 4,723.31 and 2,163.56 is: 2,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.45 : 4,723.31 = 2,163.56 : x
  2. Step 2: Convert to fraction form
    3,422.45/4,723.31 = 2,163.56/x
  3. Step 3: Cross multiply
    3,422.45x = 4,723.31 × 2,163.56
  4. Step 4: Simplify right side
    3,422.45x = 10,219,172.94
  5. Step 5: Solve for x
    x = 10,219,172.94/3,422.45
  6. Step 6: Final answer
    x = 2,985.92

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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.