Home / 7,660.40-11,472.48-3,765.92

Finding the Fourth Proportional to 7,660.40, 11,472.48 and 3,765.92

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Solution

The fourth proportional to 7,660.40, 11,472.48 and 3,765.92 is: 5,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.40 : 11,472.48 = 3,765.92 : x
  2. Step 2: Convert to fraction form
    7,660.40/11,472.48 = 3,765.92/x
  3. Step 3: Cross multiply
    7,660.40x = 11,472.48 × 3,765.92
  4. Step 4: Simplify right side
    7,660.40x = 43,204,441.88
  5. Step 5: Solve for x
    x = 43,204,441.88/7,660.40
  6. Step 6: Final answer
    x = 5,639.97

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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.