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Finding the Fourth Proportional to 6,813.07, 9,401.67 and 3,828.71

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Solution

The fourth proportional to 6,813.07, 9,401.67 and 3,828.71 is: 5,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.07 : 9,401.67 = 3,828.71 : x
  2. Step 2: Convert to fraction form
    6,813.07/9,401.67 = 3,828.71/x
  3. Step 3: Cross multiply
    6,813.07x = 9,401.67 × 3,828.71
  4. Step 4: Simplify right side
    6,813.07x = 35,996,305.81
  5. Step 5: Solve for x
    x = 35,996,305.81/6,813.07
  6. Step 6: Final answer
    x = 5,283.42

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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.