Home / 3,914.25-5,871.69-1,605.75

Finding the Fourth Proportional to 3,914.25, 5,871.69 and 1,605.75

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Solution

The fourth proportional to 3,914.25, 5,871.69 and 1,605.75 is: 2,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.25 : 5,871.69 = 1,605.75 : x
  2. Step 2: Convert to fraction form
    3,914.25/5,871.69 = 1,605.75/x
  3. Step 3: Cross multiply
    3,914.25x = 5,871.69 × 1,605.75
  4. Step 4: Simplify right side
    3,914.25x = 9,428,466.22
  5. Step 5: Solve for x
    x = 9,428,466.22/3,914.25
  6. Step 6: Final answer
    x = 2,408.75

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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.