Home / 3,180.28-4,388.82-1,783

Finding the Fourth Proportional to 3,180.28, 4,388.82 and 1,783

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Solution

The fourth proportional to 3,180.28, 4,388.82 and 1,783 is: 2,460.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.28 : 4,388.82 = 1,783 : x
  2. Step 2: Convert to fraction form
    3,180.28/4,388.82 = 1,783/x
  3. Step 3: Cross multiply
    3,180.28x = 4,388.82 × 1,783
  4. Step 4: Simplify right side
    3,180.28x = 7,825,266.06
  5. Step 5: Solve for x
    x = 7,825,266.06/3,180.28
  6. Step 6: Final answer
    x = 2,460.56

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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.