Home / 3,953.88-5,455.87-2,185.24

Finding the Fourth Proportional to 3,953.88, 5,455.87 and 2,185.24

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Solution

The fourth proportional to 3,953.88, 5,455.87 and 2,185.24 is: 3,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.88 : 5,455.87 = 2,185.24 : x
  2. Step 2: Convert to fraction form
    3,953.88/5,455.87 = 2,185.24/x
  3. Step 3: Cross multiply
    3,953.88x = 5,455.87 × 2,185.24
  4. Step 4: Simplify right side
    3,953.88x = 11,922,385.36
  5. Step 5: Solve for x
    x = 11,922,385.36/3,953.88
  6. Step 6: Final answer
    x = 3,015.36

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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.