Home / 3,890.38-5,836.80-2,966.98

Finding the Fourth Proportional to 3,890.38, 5,836.80 and 2,966.98

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Solution

The fourth proportional to 3,890.38, 5,836.80 and 2,966.98 is: 4,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.38 : 5,836.80 = 2,966.98 : x
  2. Step 2: Convert to fraction form
    3,890.38/5,836.80 = 2,966.98/x
  3. Step 3: Cross multiply
    3,890.38x = 5,836.80 × 2,966.98
  4. Step 4: Simplify right side
    3,890.38x = 17,317,668.86
  5. Step 5: Solve for x
    x = 17,317,668.86/3,890.38
  6. Step 6: Final answer
    x = 4,451.41

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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.