Home / 3,179.36-4,770.04-1,425.84

Finding the Fourth Proportional to 3,179.36, 4,770.04 and 1,425.84

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Solution

The fourth proportional to 3,179.36, 4,770.04 and 1,425.84 is: 2,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.36 : 4,770.04 = 1,425.84 : x
  2. Step 2: Convert to fraction form
    3,179.36/4,770.04 = 1,425.84/x
  3. Step 3: Cross multiply
    3,179.36x = 4,770.04 × 1,425.84
  4. Step 4: Simplify right side
    3,179.36x = 6,801,313.83
  5. Step 5: Solve for x
    x = 6,801,313.83/3,179.36
  6. Step 6: Final answer
    x = 2,139.21

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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.