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Finding the Fourth Proportional to 3,100.99, 4,646.63 and 2,636.86

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Solution

The fourth proportional to 3,100.99, 4,646.63 and 2,636.86 is: 3,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.99 : 4,646.63 = 2,636.86 : x
  2. Step 2: Convert to fraction form
    3,100.99/4,646.63 = 2,636.86/x
  3. Step 3: Cross multiply
    3,100.99x = 4,646.63 × 2,636.86
  4. Step 4: Simplify right side
    3,100.99x = 12,252,505.41
  5. Step 5: Solve for x
    x = 12,252,505.41/3,100.99
  6. Step 6: Final answer
    x = 3,951.16

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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.