Home / 7,589.41-11,381.79-3,638.63

Finding the Fourth Proportional to 7,589.41, 11,381.79 and 3,638.63

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Solution

The fourth proportional to 7,589.41, 11,381.79 and 3,638.63 is: 5,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.41 : 11,381.79 = 3,638.63 : x
  2. Step 2: Convert to fraction form
    7,589.41/11,381.79 = 3,638.63/x
  3. Step 3: Cross multiply
    7,589.41x = 11,381.79 × 3,638.63
  4. Step 4: Simplify right side
    7,589.41x = 41,414,065.64
  5. Step 5: Solve for x
    x = 41,414,065.64/7,589.41
  6. Step 6: Final answer
    x = 5,456.82

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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.