Home / 3,986.69-5,977.07-2,750.58

Finding the Fourth Proportional to 3,986.69, 5,977.07 and 2,750.58

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Solution

The fourth proportional to 3,986.69, 5,977.07 and 2,750.58 is: 4,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.69 : 5,977.07 = 2,750.58 : x
  2. Step 2: Convert to fraction form
    3,986.69/5,977.07 = 2,750.58/x
  3. Step 3: Cross multiply
    3,986.69x = 5,977.07 × 2,750.58
  4. Step 4: Simplify right side
    3,986.69x = 16,440,416.08
  5. Step 5: Solve for x
    x = 16,440,416.08/3,986.69
  6. Step 6: Final answer
    x = 4,123.82

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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.