Home / 7,669.85-11,507.20-2,739.38

Finding the Fourth Proportional to 7,669.85, 11,507.20 and 2,739.38

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Solution

The fourth proportional to 7,669.85, 11,507.20 and 2,739.38 is: 4,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.85 : 11,507.20 = 2,739.38 : x
  2. Step 2: Convert to fraction form
    7,669.85/11,507.20 = 2,739.38/x
  3. Step 3: Cross multiply
    7,669.85x = 11,507.20 × 2,739.38
  4. Step 4: Simplify right side
    7,669.85x = 31,522,529.15
  5. Step 5: Solve for x
    x = 31,522,529.15/7,669.85
  6. Step 6: Final answer
    x = 4,109.93

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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.