Home / 3,625.30-5,425.80-3,187.90

Finding the Fourth Proportional to 3,625.30, 5,425.80 and 3,187.90

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Solution

The fourth proportional to 3,625.30, 5,425.80 and 3,187.90 is: 4,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.30 : 5,425.80 = 3,187.90 : x
  2. Step 2: Convert to fraction form
    3,625.30/5,425.80 = 3,187.90/x
  3. Step 3: Cross multiply
    3,625.30x = 5,425.80 × 3,187.90
  4. Step 4: Simplify right side
    3,625.30x = 17,296,907.82
  5. Step 5: Solve for x
    x = 17,296,907.82/3,625.30
  6. Step 6: Final answer
    x = 4,771.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.