Home / 3,977.84-5,960.28-3,151.64

Finding the Fourth Proportional to 3,977.84, 5,960.28 and 3,151.64

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Solution

The fourth proportional to 3,977.84, 5,960.28 and 3,151.64 is: 4,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.84 : 5,960.28 = 3,151.64 : x
  2. Step 2: Convert to fraction form
    3,977.84/5,960.28 = 3,151.64/x
  3. Step 3: Cross multiply
    3,977.84x = 5,960.28 × 3,151.64
  4. Step 4: Simplify right side
    3,977.84x = 18,784,656.86
  5. Step 5: Solve for x
    x = 18,784,656.86/3,977.84
  6. Step 6: Final answer
    x = 4,722.33

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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.