Home / 3,580.73-5,370.23-1,388.06

Finding the Fourth Proportional to 3,580.73, 5,370.23 and 1,388.06

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Solution

The fourth proportional to 3,580.73, 5,370.23 and 1,388.06 is: 2,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.73 : 5,370.23 = 1,388.06 : x
  2. Step 2: Convert to fraction form
    3,580.73/5,370.23 = 1,388.06/x
  3. Step 3: Cross multiply
    3,580.73x = 5,370.23 × 1,388.06
  4. Step 4: Simplify right side
    3,580.73x = 7,454,201.45
  5. Step 5: Solve for x
    x = 7,454,201.45/3,580.73
  6. Step 6: Final answer
    x = 2,081.75

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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.