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Finding the Fourth Proportional to 6,782.92, 9,359.92 and 4,130

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Solution

The fourth proportional to 6,782.92, 9,359.92 and 4,130 is: 5,699.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,782.92 : 9,359.92 = 4,130 : x
  2. Step 2: Convert to fraction form
    6,782.92/9,359.92 = 4,130/x
  3. Step 3: Cross multiply
    6,782.92x = 9,359.92 × 4,130
  4. Step 4: Simplify right side
    6,782.92x = 38,656,469.60
  5. Step 5: Solve for x
    x = 38,656,469.60/6,782.92
  6. Step 6: Final answer
    x = 5,699.09

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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.