Home / 3,859.54-5,326.36-2,181.02

Finding the Fourth Proportional to 3,859.54, 5,326.36 and 2,181.02

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Solution

The fourth proportional to 3,859.54, 5,326.36 and 2,181.02 is: 3,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.54 : 5,326.36 = 2,181.02 : x
  2. Step 2: Convert to fraction form
    3,859.54/5,326.36 = 2,181.02/x
  3. Step 3: Cross multiply
    3,859.54x = 5,326.36 × 2,181.02
  4. Step 4: Simplify right side
    3,859.54x = 11,616,877.87
  5. Step 5: Solve for x
    x = 11,616,877.87/3,859.54
  6. Step 6: Final answer
    x = 3,009.91

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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.