Home / 6,931.05-10,402.04-3,231.37

Finding the Fourth Proportional to 6,931.05, 10,402.04 and 3,231.37

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Solution

The fourth proportional to 6,931.05, 10,402.04 and 3,231.37 is: 4,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.05 : 10,402.04 = 3,231.37 : x
  2. Step 2: Convert to fraction form
    6,931.05/10,402.04 = 3,231.37/x
  3. Step 3: Cross multiply
    6,931.05x = 10,402.04 × 3,231.37
  4. Step 4: Simplify right side
    6,931.05x = 33,612,861.08
  5. Step 5: Solve for x
    x = 33,612,861.08/6,931.05
  6. Step 6: Final answer
    x = 4,849.61

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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.