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Finding the Fourth Proportional to 6,660.96, 9,192 and 3,636.10

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Solution

The fourth proportional to 6,660.96, 9,192 and 3,636.10 is: 5,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.96 : 9,192 = 3,636.10 : x
  2. Step 2: Convert to fraction form
    6,660.96/9,192 = 3,636.10/x
  3. Step 3: Cross multiply
    6,660.96x = 9,192 × 3,636.10
  4. Step 4: Simplify right side
    6,660.96x = 33,423,031.20
  5. Step 5: Solve for x
    x = 33,423,031.20/6,660.96
  6. Step 6: Final answer
    x = 5,017.75

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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.