Home / 3,857.43-5,323.83-2,179.53

Finding the Fourth Proportional to 3,857.43, 5,323.83 and 2,179.53

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Solution

The fourth proportional to 3,857.43, 5,323.83 and 2,179.53 is: 3,008.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.43 : 5,323.83 = 2,179.53 : x
  2. Step 2: Convert to fraction form
    3,857.43/5,323.83 = 2,179.53/x
  3. Step 3: Cross multiply
    3,857.43x = 5,323.83 × 2,179.53
  4. Step 4: Simplify right side
    3,857.43x = 11,603,447.20
  5. Step 5: Solve for x
    x = 11,603,447.20/3,857.43
  6. Step 6: Final answer
    x = 3,008.08

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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.