Home / 6,731.21-9,289.94-3,861.05

Finding the Fourth Proportional to 6,731.21, 9,289.94 and 3,861.05

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Solution

The fourth proportional to 6,731.21, 9,289.94 and 3,861.05 is: 5,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.21 : 9,289.94 = 3,861.05 : x
  2. Step 2: Convert to fraction form
    6,731.21/9,289.94 = 3,861.05/x
  3. Step 3: Cross multiply
    6,731.21x = 9,289.94 × 3,861.05
  4. Step 4: Simplify right side
    6,731.21x = 35,868,935.47
  5. Step 5: Solve for x
    x = 35,868,935.47/6,731.21
  6. Step 6: Final answer
    x = 5,328.75

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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.