Home / 5,078.03-7,007.40-2,839.46

Finding the Fourth Proportional to 5,078.03, 7,007.40 and 2,839.46

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Solution

The fourth proportional to 5,078.03, 7,007.40 and 2,839.46 is: 3,918.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.03 : 7,007.40 = 2,839.46 : x
  2. Step 2: Convert to fraction form
    5,078.03/7,007.40 = 2,839.46/x
  3. Step 3: Cross multiply
    5,078.03x = 7,007.40 × 2,839.46
  4. Step 4: Simplify right side
    5,078.03x = 19,897,196.97
  5. Step 5: Solve for x
    x = 19,897,196.97/5,078.03
  6. Step 6: Final answer
    x = 3,918.29

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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.