Home / 2,320-3,201.56-1,272.04

Finding the Fourth Proportional to 2,320, 3,201.56 and 1,272.04

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Solution

The fourth proportional to 2,320, 3,201.56 and 1,272.04 is: 1,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320 : 3,201.56 = 1,272.04 : x
  2. Step 2: Convert to fraction form
    2,320/3,201.56 = 1,272.04/x
  3. Step 3: Cross multiply
    2,320x = 3,201.56 × 1,272.04
  4. Step 4: Simplify right side
    2,320x = 4,072,512.38
  5. Step 5: Solve for x
    x = 4,072,512.38/2,320
  6. Step 6: Final answer
    x = 1,755.39

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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.