Home / 7,129.43-10,694.11-1,935.30

Finding the Fourth Proportional to 7,129.43, 10,694.11 and 1,935.30

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Solution

The fourth proportional to 7,129.43, 10,694.11 and 1,935.30 is: 2,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.43 : 10,694.11 = 1,935.30 : x
  2. Step 2: Convert to fraction form
    7,129.43/10,694.11 = 1,935.30/x
  3. Step 3: Cross multiply
    7,129.43x = 10,694.11 × 1,935.30
  4. Step 4: Simplify right side
    7,129.43x = 20,696,311.08
  5. Step 5: Solve for x
    x = 20,696,311.08/7,129.43
  6. Step 6: Final answer
    x = 2,902.94

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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.