Home / 3,450.80-5,171.58-1,257.46

Finding the Fourth Proportional to 3,450.80, 5,171.58 and 1,257.46

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Solution

The fourth proportional to 3,450.80, 5,171.58 and 1,257.46 is: 1,884.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.80 : 5,171.58 = 1,257.46 : x
  2. Step 2: Convert to fraction form
    3,450.80/5,171.58 = 1,257.46/x
  3. Step 3: Cross multiply
    3,450.80x = 5,171.58 × 1,257.46
  4. Step 4: Simplify right side
    3,450.80x = 6,503,042.06
  5. Step 5: Solve for x
    x = 6,503,042.06/3,450.80
  6. Step 6: Final answer
    x = 1,884.50

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1.5x scale

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.