Home / 3,922.75-5,884.13-1,325.89

Finding the Fourth Proportional to 3,922.75, 5,884.13 and 1,325.89

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Solution

The fourth proportional to 3,922.75, 5,884.13 and 1,325.89 is: 1,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.75 : 5,884.13 = 1,325.89 : x
  2. Step 2: Convert to fraction form
    3,922.75/5,884.13 = 1,325.89/x
  3. Step 3: Cross multiply
    3,922.75x = 5,884.13 × 1,325.89
  4. Step 4: Simplify right side
    3,922.75x = 7,801,709.13
  5. Step 5: Solve for x
    x = 7,801,709.13/3,922.75
  6. Step 6: Final answer
    x = 1,988.84

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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.