Home / 3,986.95-5,977.45-2,750.83

Finding the Fourth Proportional to 3,986.95, 5,977.45 and 2,750.83

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Solution

The fourth proportional to 3,986.95, 5,977.45 and 2,750.83 is: 4,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.95 : 5,977.45 = 2,750.83 : x
  2. Step 2: Convert to fraction form
    3,986.95/5,977.45 = 2,750.83/x
  3. Step 3: Cross multiply
    3,986.95x = 5,977.45 × 2,750.83
  4. Step 4: Simplify right side
    3,986.95x = 16,442,935.03
  5. Step 5: Solve for x
    x = 16,442,935.03/3,986.95
  6. Step 6: Final answer
    x = 4,124.19

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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.