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Finding the Fourth Proportional to 5,016.88, 6,922.31 and 2,778.65

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Solution

The fourth proportional to 5,016.88, 6,922.31 and 2,778.65 is: 3,833.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.88 : 6,922.31 = 2,778.65 : x
  2. Step 2: Convert to fraction form
    5,016.88/6,922.31 = 2,778.65/x
  3. Step 3: Cross multiply
    5,016.88x = 6,922.31 × 2,778.65
  4. Step 4: Simplify right side
    5,016.88x = 19,234,676.68
  5. Step 5: Solve for x
    x = 19,234,676.68/5,016.88
  6. Step 6: Final answer
    x = 3,833.99

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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.