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Finding the Fourth Proportional to 4,879.72, 6,734.82 and 3,306.76

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Solution

The fourth proportional to 4,879.72, 6,734.82 and 3,306.76 is: 4,563.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.72 : 6,734.82 = 3,306.76 : x
  2. Step 2: Convert to fraction form
    4,879.72/6,734.82 = 3,306.76/x
  3. Step 3: Cross multiply
    4,879.72x = 6,734.82 × 3,306.76
  4. Step 4: Simplify right side
    4,879.72x = 22,270,433.38
  5. Step 5: Solve for x
    x = 22,270,433.38/4,879.72
  6. Step 6: Final answer
    x = 4,563.88

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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.