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Finding the Fourth Proportional to 3,793.56, 5,235.06 and 2,221.68

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Solution

The fourth proportional to 3,793.56, 5,235.06 and 2,221.68 is: 3,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.56 : 5,235.06 = 2,221.68 : x
  2. Step 2: Convert to fraction form
    3,793.56/5,235.06 = 2,221.68/x
  3. Step 3: Cross multiply
    3,793.56x = 5,235.06 × 2,221.68
  4. Step 4: Simplify right side
    3,793.56x = 11,630,628.10
  5. Step 5: Solve for x
    x = 11,630,628.10/3,793.56
  6. Step 6: Final answer
    x = 3,065.89

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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.