Home / 7,739.79-10,680.66-4,202.97

Finding the Fourth Proportional to 7,739.79, 10,680.66 and 4,202.97

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Solution

The fourth proportional to 7,739.79, 10,680.66 and 4,202.97 is: 5,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.79 : 10,680.66 = 4,202.97 : x
  2. Step 2: Convert to fraction form
    7,739.79/10,680.66 = 4,202.97/x
  3. Step 3: Cross multiply
    7,739.79x = 10,680.66 × 4,202.97
  4. Step 4: Simplify right side
    7,739.79x = 44,890,493.56
  5. Step 5: Solve for x
    x = 44,890,493.56/7,739.79
  6. Step 6: Final answer
    x = 5,799.96

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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.