Home / 2,163.52-3,242.40-2,139.04

Finding the Fourth Proportional to 2,163.52, 3,242.40 and 2,139.04

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Solution

The fourth proportional to 2,163.52, 3,242.40 and 2,139.04 is: 3,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.52 : 3,242.40 = 2,139.04 : x
  2. Step 2: Convert to fraction form
    2,163.52/3,242.40 = 2,139.04/x
  3. Step 3: Cross multiply
    2,163.52x = 3,242.40 × 2,139.04
  4. Step 4: Simplify right side
    2,163.52x = 6,935,623.30
  5. Step 5: Solve for x
    x = 6,935,623.30/2,163.52
  6. Step 6: Final answer
    x = 3,205.71

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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.