Home / 3,887.30-5,364-2,208.69

Finding the Fourth Proportional to 3,887.30, 5,364 and 2,208.69

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Solution

The fourth proportional to 3,887.30, 5,364 and 2,208.69 is: 3,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.30 : 5,364 = 2,208.69 : x
  2. Step 2: Convert to fraction form
    3,887.30/5,364 = 2,208.69/x
  3. Step 3: Cross multiply
    3,887.30x = 5,364 × 2,208.69
  4. Step 4: Simplify right side
    3,887.30x = 11,847,413.16
  5. Step 5: Solve for x
    x = 11,847,413.16/3,887.30
  6. Step 6: Final answer
    x = 3,047.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.