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Finding the Fourth Proportional to 3,393.56, 4,684.38 and 1,996.76

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Solution

The fourth proportional to 3,393.56, 4,684.38 and 1,996.76 is: 2,756.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.56 : 4,684.38 = 1,996.76 : x
  2. Step 2: Convert to fraction form
    3,393.56/4,684.38 = 1,996.76/x
  3. Step 3: Cross multiply
    3,393.56x = 4,684.38 × 1,996.76
  4. Step 4: Simplify right side
    3,393.56x = 9,353,582.61
  5. Step 5: Solve for x
    x = 9,353,582.61/3,393.56
  6. Step 6: Final answer
    x = 2,756.27

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1.5x scale

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.