Home / 3,858.51-5,324.43-2,180.06

Finding the Fourth Proportional to 3,858.51, 5,324.43 and 2,180.06

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Solution

The fourth proportional to 3,858.51, 5,324.43 and 2,180.06 is: 3,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.51 : 5,324.43 = 2,180.06 : x
  2. Step 2: Convert to fraction form
    3,858.51/5,324.43 = 2,180.06/x
  3. Step 3: Cross multiply
    3,858.51x = 5,324.43 × 2,180.06
  4. Step 4: Simplify right side
    3,858.51x = 11,607,586.09
  5. Step 5: Solve for x
    x = 11,607,586.09/3,858.51
  6. Step 6: Final answer
    x = 3,008.31

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1.5x scale

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.