Home / 6,931.43-10,402.61-3,231.75

Finding the Fourth Proportional to 6,931.43, 10,402.61 and 3,231.75

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Solution

The fourth proportional to 6,931.43, 10,402.61 and 3,231.75 is: 4,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.43 : 10,402.61 = 3,231.75 : x
  2. Step 2: Convert to fraction form
    6,931.43/10,402.61 = 3,231.75/x
  3. Step 3: Cross multiply
    6,931.43x = 10,402.61 × 3,231.75
  4. Step 4: Simplify right side
    6,931.43x = 33,618,618.71
  5. Step 5: Solve for x
    x = 33,618,618.71/6,931.43
  6. Step 6: Final answer
    x = 4,850.17

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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.