Home / 3,422.60-4,721.51-2,163.05

Finding the Fourth Proportional to 3,422.60, 4,721.51 and 2,163.05

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Solution

The fourth proportional to 3,422.60, 4,721.51 and 2,163.05 is: 2,983.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.60 : 4,721.51 = 2,163.05 : x
  2. Step 2: Convert to fraction form
    3,422.60/4,721.51 = 2,163.05/x
  3. Step 3: Cross multiply
    3,422.60x = 4,721.51 × 2,163.05
  4. Step 4: Simplify right side
    3,422.60x = 10,212,862.21
  5. Step 5: Solve for x
    x = 10,212,862.21/3,422.60
  6. Step 6: Final answer
    x = 2,983.95

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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.