Home / 3,339.54-5,009.76-1,391.28

Finding the Fourth Proportional to 3,339.54, 5,009.76 and 1,391.28

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Solution

The fourth proportional to 3,339.54, 5,009.76 and 1,391.28 is: 2,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.54 : 5,009.76 = 1,391.28 : x
  2. Step 2: Convert to fraction form
    3,339.54/5,009.76 = 1,391.28/x
  3. Step 3: Cross multiply
    3,339.54x = 5,009.76 × 1,391.28
  4. Step 4: Simplify right side
    3,339.54x = 6,969,971.94
  5. Step 5: Solve for x
    x = 6,969,971.94/3,339.54
  6. Step 6: Final answer
    x = 2,087.11

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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.