Home / 7,760.23-11,640.31-2,566.11

Finding the Fourth Proportional to 7,760.23, 11,640.31 and 2,566.11

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Solution

The fourth proportional to 7,760.23, 11,640.31 and 2,566.11 is: 3,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.23 : 11,640.31 = 2,566.11 : x
  2. Step 2: Convert to fraction form
    7,760.23/11,640.31 = 2,566.11/x
  3. Step 3: Cross multiply
    7,760.23x = 11,640.31 × 2,566.11
  4. Step 4: Simplify right side
    7,760.23x = 29,870,315.89
  5. Step 5: Solve for x
    x = 29,870,315.89/7,760.23
  6. Step 6: Final answer
    x = 3,849.15

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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.