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Finding the Fourth Proportional to 8,308.08, 12,461.04 and 3,690

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Solution

The fourth proportional to 8,308.08, 12,461.04 and 3,690 is: 5,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.08 : 12,461.04 = 3,690 : x
  2. Step 2: Convert to fraction form
    8,308.08/12,461.04 = 3,690/x
  3. Step 3: Cross multiply
    8,308.08x = 12,461.04 × 3,690
  4. Step 4: Simplify right side
    8,308.08x = 45,981,237.60
  5. Step 5: Solve for x
    x = 45,981,237.60/8,308.08
  6. Step 6: Final answer
    x = 5,534.52

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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.