Home / 3,953.70-5,456.10-2,185.62

Finding the Fourth Proportional to 3,953.70, 5,456.10 and 2,185.62

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Solution

The fourth proportional to 3,953.70, 5,456.10 and 2,185.62 is: 3,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.70 : 5,456.10 = 2,185.62 : x
  2. Step 2: Convert to fraction form
    3,953.70/5,456.10 = 2,185.62/x
  3. Step 3: Cross multiply
    3,953.70x = 5,456.10 × 2,185.62
  4. Step 4: Simplify right side
    3,953.70x = 11,924,961.28
  5. Step 5: Solve for x
    x = 11,924,961.28/3,953.70
  6. Step 6: Final answer
    x = 3,016.15

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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.