Home / 2,163.96-2,986.50-1,325.23

Finding the Fourth Proportional to 2,163.96, 2,986.50 and 1,325.23

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Solution

The fourth proportional to 2,163.96, 2,986.50 and 1,325.23 is: 1,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.96 : 2,986.50 = 1,325.23 : x
  2. Step 2: Convert to fraction form
    2,163.96/2,986.50 = 1,325.23/x
  3. Step 3: Cross multiply
    2,163.96x = 2,986.50 × 1,325.23
  4. Step 4: Simplify right side
    2,163.96x = 3,957,799.40
  5. Step 5: Solve for x
    x = 3,957,799.40/2,163.96
  6. Step 6: Final answer
    x = 1,828.96

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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.