Home / 6,426.05-9,640.49-2,731.43

Finding the Fourth Proportional to 6,426.05, 9,640.49 and 2,731.43

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Solution

The fourth proportional to 6,426.05, 9,640.49 and 2,731.43 is: 4,097.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.05 : 9,640.49 = 2,731.43 : x
  2. Step 2: Convert to fraction form
    6,426.05/9,640.49 = 2,731.43/x
  3. Step 3: Cross multiply
    6,426.05x = 9,640.49 × 2,731.43
  4. Step 4: Simplify right side
    6,426.05x = 26,332,354.53
  5. Step 5: Solve for x
    x = 26,332,354.53/6,426.05
  6. Step 6: Final answer
    x = 4,097.75

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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.