Home / 3,106.18-4,286.32-1,761.86

Finding the Fourth Proportional to 3,106.18, 4,286.32 and 1,761.86

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Solution

The fourth proportional to 3,106.18, 4,286.32 and 1,761.86 is: 2,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.18 : 4,286.32 = 1,761.86 : x
  2. Step 2: Convert to fraction form
    3,106.18/4,286.32 = 1,761.86/x
  3. Step 3: Cross multiply
    3,106.18x = 4,286.32 × 1,761.86
  4. Step 4: Simplify right side
    3,106.18x = 7,551,902.07
  5. Step 5: Solve for x
    x = 7,551,902.07/3,106.18
  6. Step 6: Final answer
    x = 2,431.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.