Home / 7,685.37-11,531.81-2,755.39

Finding the Fourth Proportional to 7,685.37, 11,531.81 and 2,755.39

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Solution

The fourth proportional to 7,685.37, 11,531.81 and 2,755.39 is: 4,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.37 : 11,531.81 = 2,755.39 : x
  2. Step 2: Convert to fraction form
    7,685.37/11,531.81 = 2,755.39/x
  3. Step 3: Cross multiply
    7,685.37x = 11,531.81 × 2,755.39
  4. Step 4: Simplify right side
    7,685.37x = 31,774,633.96
  5. Step 5: Solve for x
    x = 31,774,633.96/7,685.37
  6. Step 6: Final answer
    x = 4,134.43

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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.