Home / 3,179.64-4,385.30-2,238.55

Finding the Fourth Proportional to 3,179.64, 4,385.30 and 2,238.55

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Solution

The fourth proportional to 3,179.64, 4,385.30 and 2,238.55 is: 3,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.64 : 4,385.30 = 2,238.55 : x
  2. Step 2: Convert to fraction form
    3,179.64/4,385.30 = 2,238.55/x
  3. Step 3: Cross multiply
    3,179.64x = 4,385.30 × 2,238.55
  4. Step 4: Simplify right side
    3,179.64x = 9,816,713.32
  5. Step 5: Solve for x
    x = 9,816,713.32/3,179.64
  6. Step 6: Final answer
    x = 3,087.37

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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.