Home / 7,741.80-11,609.16-2,475.78

Finding the Fourth Proportional to 7,741.80, 11,609.16 and 2,475.78

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Solution

The fourth proportional to 7,741.80, 11,609.16 and 2,475.78 is: 3,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.80 : 11,609.16 = 2,475.78 : x
  2. Step 2: Convert to fraction form
    7,741.80/11,609.16 = 2,475.78/x
  3. Step 3: Cross multiply
    7,741.80x = 11,609.16 × 2,475.78
  4. Step 4: Simplify right side
    7,741.80x = 28,741,726.14
  5. Step 5: Solve for x
    x = 28,741,726.14/7,741.80
  6. Step 6: Final answer
    x = 3,712.54

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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.