Home / 3,922.84-5,884.86-1,325.08

Finding the Fourth Proportional to 3,922.84, 5,884.86 and 1,325.08

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Solution

The fourth proportional to 3,922.84, 5,884.86 and 1,325.08 is: 1,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.84 : 5,884.86 = 1,325.08 : x
  2. Step 2: Convert to fraction form
    3,922.84/5,884.86 = 1,325.08/x
  3. Step 3: Cross multiply
    3,922.84x = 5,884.86 × 1,325.08
  4. Step 4: Simplify right side
    3,922.84x = 7,797,910.29
  5. Step 5: Solve for x
    x = 7,797,910.29/3,922.84
  6. Step 6: Final answer
    x = 1,987.82

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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.