Home / 3,911.12-5,396.51-2,318.27

Finding the Fourth Proportional to 3,911.12, 5,396.51 and 2,318.27

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Solution

The fourth proportional to 3,911.12, 5,396.51 and 2,318.27 is: 3,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.12 : 5,396.51 = 2,318.27 : x
  2. Step 2: Convert to fraction form
    3,911.12/5,396.51 = 2,318.27/x
  3. Step 3: Cross multiply
    3,911.12x = 5,396.51 × 2,318.27
  4. Step 4: Simplify right side
    3,911.12x = 12,510,567.24
  5. Step 5: Solve for x
    x = 12,510,567.24/3,911.12
  6. Step 6: Final answer
    x = 3,198.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.