Home / 7,651.38-11,477.82-2,719.88

Finding the Fourth Proportional to 7,651.38, 11,477.82 and 2,719.88

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Solution

The fourth proportional to 7,651.38, 11,477.82 and 2,719.88 is: 4,080.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.38 : 11,477.82 = 2,719.88 : x
  2. Step 2: Convert to fraction form
    7,651.38/11,477.82 = 2,719.88/x
  3. Step 3: Cross multiply
    7,651.38x = 11,477.82 × 2,719.88
  4. Step 4: Simplify right side
    7,651.38x = 31,218,235.67
  5. Step 5: Solve for x
    x = 31,218,235.67/7,651.38
  6. Step 6: Final answer
    x = 4,080.08

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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.