Home / 6,731.46-9,289.94-3,899.75

Finding the Fourth Proportional to 6,731.46, 9,289.94 and 3,899.75

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Solution

The fourth proportional to 6,731.46, 9,289.94 and 3,899.75 is: 5,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.46 : 9,289.94 = 3,899.75 : x
  2. Step 2: Convert to fraction form
    6,731.46/9,289.94 = 3,899.75/x
  3. Step 3: Cross multiply
    6,731.46x = 9,289.94 × 3,899.75
  4. Step 4: Simplify right side
    6,731.46x = 36,228,377.57
  5. Step 5: Solve for x
    x = 36,228,377.57/6,731.46
  6. Step 6: Final answer
    x = 5,381.95

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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.