Home / 3,180.06-4,388.49-1,782.81

Finding the Fourth Proportional to 3,180.06, 4,388.49 and 1,782.81

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Solution

The fourth proportional to 3,180.06, 4,388.49 and 1,782.81 is: 2,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.06 : 4,388.49 = 1,782.81 : x
  2. Step 2: Convert to fraction form
    3,180.06/4,388.49 = 1,782.81/x
  3. Step 3: Cross multiply
    3,180.06x = 4,388.49 × 1,782.81
  4. Step 4: Simplify right side
    3,180.06x = 7,823,843.86
  5. Step 5: Solve for x
    x = 7,823,843.86/3,180.06
  6. Step 6: Final answer
    x = 2,460.28

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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.