Home / 3,857.55-5,323.73-2,179.05

Finding the Fourth Proportional to 3,857.55, 5,323.73 and 2,179.05

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Solution

The fourth proportional to 3,857.55, 5,323.73 and 2,179.05 is: 3,007.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.55 : 5,323.73 = 2,179.05 : x
  2. Step 2: Convert to fraction form
    3,857.55/5,323.73 = 2,179.05/x
  3. Step 3: Cross multiply
    3,857.55x = 5,323.73 × 2,179.05
  4. Step 4: Simplify right side
    3,857.55x = 11,600,662.96
  5. Step 5: Solve for x
    x = 11,600,662.96/3,857.55
  6. Step 6: Final answer
    x = 3,007.26

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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.