Home / 3,890.39-5,833.60-1,424.57

Finding the Fourth Proportional to 3,890.39, 5,833.60 and 1,424.57

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Solution

The fourth proportional to 3,890.39, 5,833.60 and 1,424.57 is: 2,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.39 : 5,833.60 = 1,424.57 : x
  2. Step 2: Convert to fraction form
    3,890.39/5,833.60 = 1,424.57/x
  3. Step 3: Cross multiply
    3,890.39x = 5,833.60 × 1,424.57
  4. Step 4: Simplify right side
    3,890.39x = 8,310,338.82
  5. Step 5: Solve for x
    x = 8,310,338.82/3,890.39
  6. Step 6: Final answer
    x = 2,136.12

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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.