Home / 5,207.53-7,811.25-2,087.49

Finding the Fourth Proportional to 5,207.53, 7,811.25 and 2,087.49

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Solution

The fourth proportional to 5,207.53, 7,811.25 and 2,087.49 is: 3,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.53 : 7,811.25 = 2,087.49 : x
  2. Step 2: Convert to fraction form
    5,207.53/7,811.25 = 2,087.49/x
  3. Step 3: Cross multiply
    5,207.53x = 7,811.25 × 2,087.49
  4. Step 4: Simplify right side
    5,207.53x = 16,305,867.69
  5. Step 5: Solve for x
    x = 16,305,867.69/5,207.53
  6. Step 6: Final answer
    x = 3,131.21

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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.