Home / 3,957.42-5,930.25-3,126.36

Finding the Fourth Proportional to 3,957.42, 5,930.25 and 3,126.36

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Solution

The fourth proportional to 3,957.42, 5,930.25 and 3,126.36 is: 4,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.42 : 5,930.25 = 3,126.36 : x
  2. Step 2: Convert to fraction form
    3,957.42/5,930.25 = 3,126.36/x
  3. Step 3: Cross multiply
    3,957.42x = 5,930.25 × 3,126.36
  4. Step 4: Simplify right side
    3,957.42x = 18,540,096.39
  5. Step 5: Solve for x
    x = 18,540,096.39/3,957.42
  6. Step 6: Final answer
    x = 4,684.89

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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.