Home / 7,715.16-11,573.82-2,519.72

Finding the Fourth Proportional to 7,715.16, 11,573.82 and 2,519.72

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Solution

The fourth proportional to 7,715.16, 11,573.82 and 2,519.72 is: 3,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.16 : 11,573.82 = 2,519.72 : x
  2. Step 2: Convert to fraction form
    7,715.16/11,573.82 = 2,519.72/x
  3. Step 3: Cross multiply
    7,715.16x = 11,573.82 × 2,519.72
  4. Step 4: Simplify right side
    7,715.16x = 29,162,785.73
  5. Step 5: Solve for x
    x = 29,162,785.73/7,715.16
  6. Step 6: Final answer
    x = 3,779.93

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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.