Home / 3,512.31-5,268.73-1,320.99

Finding the Fourth Proportional to 3,512.31, 5,268.73 and 1,320.99

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Solution

The fourth proportional to 3,512.31, 5,268.73 and 1,320.99 is: 1,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.31 : 5,268.73 = 1,320.99 : x
  2. Step 2: Convert to fraction form
    3,512.31/5,268.73 = 1,320.99/x
  3. Step 3: Cross multiply
    3,512.31x = 5,268.73 × 1,320.99
  4. Step 4: Simplify right side
    3,512.31x = 6,959,910.00
  5. Step 5: Solve for x
    x = 6,959,910.00/3,512.31
  6. Step 6: Final answer
    x = 1,981.58

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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.