Home / 3,645.96-5,469.88-2,087.76

Finding the Fourth Proportional to 3,645.96, 5,469.88 and 2,087.76

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Solution

The fourth proportional to 3,645.96, 5,469.88 and 2,087.76 is: 3,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.96 : 5,469.88 = 2,087.76 : x
  2. Step 2: Convert to fraction form
    3,645.96/5,469.88 = 2,087.76/x
  3. Step 3: Cross multiply
    3,645.96x = 5,469.88 × 2,087.76
  4. Step 4: Simplify right side
    3,645.96x = 11,419,796.67
  5. Step 5: Solve for x
    x = 11,419,796.67/3,645.96
  6. Step 6: Final answer
    x = 3,132.18

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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.