Home / 3,825.91-5,272.60-2,985.28

Finding the Fourth Proportional to 3,825.91, 5,272.60 and 2,985.28

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Solution

The fourth proportional to 3,825.91, 5,272.60 and 2,985.28 is: 4,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.91 : 5,272.60 = 2,985.28 : x
  2. Step 2: Convert to fraction form
    3,825.91/5,272.60 = 2,985.28/x
  3. Step 3: Cross multiply
    3,825.91x = 5,272.60 × 2,985.28
  4. Step 4: Simplify right side
    3,825.91x = 15,740,187.33
  5. Step 5: Solve for x
    x = 15,740,187.33/3,825.91
  6. Step 6: Final answer
    x = 4,114.10

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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.