Home / 2,625.45-3,936.24-1,326

Finding the Fourth Proportional to 2,625.45, 3,936.24 and 1,326

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Solution

The fourth proportional to 2,625.45, 3,936.24 and 1,326 is: 1,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.45 : 3,936.24 = 1,326 : x
  2. Step 2: Convert to fraction form
    2,625.45/3,936.24 = 1,326/x
  3. Step 3: Cross multiply
    2,625.45x = 3,936.24 × 1,326
  4. Step 4: Simplify right side
    2,625.45x = 5,219,454.24
  5. Step 5: Solve for x
    x = 5,219,454.24/2,625.45
  6. Step 6: Final answer
    x = 1,988.02

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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.