Home / 5,321.39-7,982.39-1,623.88

Finding the Fourth Proportional to 5,321.39, 7,982.39 and 1,623.88

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Solution

The fourth proportional to 5,321.39, 7,982.39 and 1,623.88 is: 2,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.39 : 7,982.39 = 1,623.88 : x
  2. Step 2: Convert to fraction form
    5,321.39/7,982.39 = 1,623.88/x
  3. Step 3: Cross multiply
    5,321.39x = 7,982.39 × 1,623.88
  4. Step 4: Simplify right side
    5,321.39x = 12,962,427.58
  5. Step 5: Solve for x
    x = 12,962,427.58/5,321.39
  6. Step 6: Final answer
    x = 2,435.91

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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.