Home / 7,684.62-11,521.67-2,754.15

Finding the Fourth Proportional to 7,684.62, 11,521.67 and 2,754.15

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Solution

The fourth proportional to 7,684.62, 11,521.67 and 2,754.15 is: 4,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.62 : 11,521.67 = 2,754.15 : x
  2. Step 2: Convert to fraction form
    7,684.62/11,521.67 = 2,754.15/x
  3. Step 3: Cross multiply
    7,684.62x = 11,521.67 × 2,754.15
  4. Step 4: Simplify right side
    7,684.62x = 31,732,393.66
  5. Step 5: Solve for x
    x = 31,732,393.66/7,684.62
  6. Step 6: Final answer
    x = 4,129.34

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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.