Home / 4,640.05-6,985.37-4,231.81

Finding the Fourth Proportional to 4,640.05, 6,985.37 and 4,231.81

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Solution

The fourth proportional to 4,640.05, 6,985.37 and 4,231.81 is: 6,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.05 : 6,985.37 = 4,231.81 : x
  2. Step 2: Convert to fraction form
    4,640.05/6,985.37 = 4,231.81/x
  3. Step 3: Cross multiply
    4,640.05x = 6,985.37 × 4,231.81
  4. Step 4: Simplify right side
    4,640.05x = 29,560,758.62
  5. Step 5: Solve for x
    x = 29,560,758.62/4,640.05
  6. Step 6: Final answer
    x = 6,370.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.