Home / 3,985.00-5,504.27-2,811.31

Finding the Fourth Proportional to 3,985.00, 5,504.27 and 2,811.31

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Solution

The fourth proportional to 3,985.00, 5,504.27 and 2,811.31 is: 3,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.00 : 5,504.27 = 2,811.31 : x
  2. Step 2: Convert to fraction form
    3,985.00/5,504.27 = 2,811.31/x
  3. Step 3: Cross multiply
    3,985.00x = 5,504.27 × 2,811.31
  4. Step 4: Simplify right side
    3,985.00x = 15,474,181.48
  5. Step 5: Solve for x
    x = 15,474,181.48/3,985.00
  6. Step 6: Final answer
    x = 3,883.11

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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.