Home / 3,028.14-4,178.25-1,909.26

Finding the Fourth Proportional to 3,028.14, 4,178.25 and 1,909.26

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Solution

The fourth proportional to 3,028.14, 4,178.25 and 1,909.26 is: 2,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.14 : 4,178.25 = 1,909.26 : x
  2. Step 2: Convert to fraction form
    3,028.14/4,178.25 = 1,909.26/x
  3. Step 3: Cross multiply
    3,028.14x = 4,178.25 × 1,909.26
  4. Step 4: Simplify right side
    3,028.14x = 7,977,365.60
  5. Step 5: Solve for x
    x = 7,977,365.60/3,028.14
  6. Step 6: Final answer
    x = 2,634.41

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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.