Home / 3,985.18-5,963.82-2,812.48

Finding the Fourth Proportional to 3,985.18, 5,963.82 and 2,812.48

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Solution

The fourth proportional to 3,985.18, 5,963.82 and 2,812.48 is: 4,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.18 : 5,963.82 = 2,812.48 : x
  2. Step 2: Convert to fraction form
    3,985.18/5,963.82 = 2,812.48/x
  3. Step 3: Cross multiply
    3,985.18x = 5,963.82 × 2,812.48
  4. Step 4: Simplify right side
    3,985.18x = 16,773,124.47
  5. Step 5: Solve for x
    x = 16,773,124.47/3,985.18
  6. Step 6: Final answer
    x = 4,208.88

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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.