Home / 7,739.15-10,679.78-4,202.28

Finding the Fourth Proportional to 7,739.15, 10,679.78 and 4,202.28

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Solution

The fourth proportional to 7,739.15, 10,679.78 and 4,202.28 is: 5,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.15 : 10,679.78 = 4,202.28 : x
  2. Step 2: Convert to fraction form
    7,739.15/10,679.78 = 4,202.28/x
  3. Step 3: Cross multiply
    7,739.15x = 10,679.78 × 4,202.28
  4. Step 4: Simplify right side
    7,739.15x = 44,879,436.40
  5. Step 5: Solve for x
    x = 44,879,436.40/7,739.15
  6. Step 6: Final answer
    x = 5,799.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.