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Finding the Fourth Proportional to 4,472.96, 6,709.86 and 1,839.86

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Solution

The fourth proportional to 4,472.96, 6,709.86 and 1,839.86 is: 2,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472.96 : 6,709.86 = 1,839.86 : x
  2. Step 2: Convert to fraction form
    4,472.96/6,709.86 = 1,839.86/x
  3. Step 3: Cross multiply
    4,472.96x = 6,709.86 × 1,839.86
  4. Step 4: Simplify right side
    4,472.96x = 12,345,203.02
  5. Step 5: Solve for x
    x = 12,345,203.02/4,472.96
  6. Step 6: Final answer
    x = 2,759.96

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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.