Home / 3,190.42-4,785.99-1,458.82

Finding the Fourth Proportional to 3,190.42, 4,785.99 and 1,458.82

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Solution

The fourth proportional to 3,190.42, 4,785.99 and 1,458.82 is: 2,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.42 : 4,785.99 = 1,458.82 : x
  2. Step 2: Convert to fraction form
    3,190.42/4,785.99 = 1,458.82/x
  3. Step 3: Cross multiply
    3,190.42x = 4,785.99 × 1,458.82
  4. Step 4: Simplify right side
    3,190.42x = 6,981,897.93
  5. Step 5: Solve for x
    x = 6,981,897.93/3,190.42
  6. Step 6: Final answer
    x = 2,188.39

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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.