Home / 3,867.99-5,803.07-1,272.75

Finding the Fourth Proportional to 3,867.99, 5,803.07 and 1,272.75

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Solution

The fourth proportional to 3,867.99, 5,803.07 and 1,272.75 is: 1,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.99 : 5,803.07 = 1,272.75 : x
  2. Step 2: Convert to fraction form
    3,867.99/5,803.07 = 1,272.75/x
  3. Step 3: Cross multiply
    3,867.99x = 5,803.07 × 1,272.75
  4. Step 4: Simplify right side
    3,867.99x = 7,385,850.98
  5. Step 5: Solve for x
    x = 7,385,850.98/3,867.99
  6. Step 6: Final answer
    x = 1,909.48

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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.