Home / 3,887.36-5,365.36-2,208.88

Finding the Fourth Proportional to 3,887.36, 5,365.36 and 2,208.88

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Solution

The fourth proportional to 3,887.36, 5,365.36 and 2,208.88 is: 3,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.36 : 5,365.36 = 2,208.88 : x
  2. Step 2: Convert to fraction form
    3,887.36/5,365.36 = 2,208.88/x
  3. Step 3: Cross multiply
    3,887.36x = 5,365.36 × 2,208.88
  4. Step 4: Simplify right side
    3,887.36x = 11,851,436.40
  5. Step 5: Solve for x
    x = 11,851,436.40/3,887.36
  6. Step 6: Final answer
    x = 3,048.71

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1.5x scale

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.