Home / 6,311.07-8,709.45-3,516.75

Finding the Fourth Proportional to 6,311.07, 8,709.45 and 3,516.75

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Solution

The fourth proportional to 6,311.07, 8,709.45 and 3,516.75 is: 4,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.07 : 8,709.45 = 3,516.75 : x
  2. Step 2: Convert to fraction form
    6,311.07/8,709.45 = 3,516.75/x
  3. Step 3: Cross multiply
    6,311.07x = 8,709.45 × 3,516.75
  4. Step 4: Simplify right side
    6,311.07x = 30,628,958.29
  5. Step 5: Solve for x
    x = 30,628,958.29/6,311.07
  6. Step 6: Final answer
    x = 4,853.21

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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.