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Finding the Fourth Proportional to 3,504.75, 5,257.13 and 1,425.89

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Solution

The fourth proportional to 3,504.75, 5,257.13 and 1,425.89 is: 2,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.75 : 5,257.13 = 1,425.89 : x
  2. Step 2: Convert to fraction form
    3,504.75/5,257.13 = 1,425.89/x
  3. Step 3: Cross multiply
    3,504.75x = 5,257.13 × 1,425.89
  4. Step 4: Simplify right side
    3,504.75x = 7,496,055.68
  5. Step 5: Solve for x
    x = 7,496,055.68/3,504.75
  6. Step 6: Final answer
    x = 2,138.83

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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.