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Finding the Fourth Proportional to 6,386.85, 9,581.81 and 2,004.30

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Solution

The fourth proportional to 6,386.85, 9,581.81 and 2,004.30 is: 3,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.85 : 9,581.81 = 2,004.30 : x
  2. Step 2: Convert to fraction form
    6,386.85/9,581.81 = 2,004.30/x
  3. Step 3: Cross multiply
    6,386.85x = 9,581.81 × 2,004.30
  4. Step 4: Simplify right side
    6,386.85x = 19,204,821.78
  5. Step 5: Solve for x
    x = 19,204,821.78/6,386.85
  6. Step 6: Final answer
    x = 3,006.93

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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.