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Finding the Fourth Proportional to 2,124.35, 3,186.64 and 663.62

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Solution

The fourth proportional to 2,124.35, 3,186.64 and 663.62 is: 995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.35 : 3,186.64 = 663.62 : x
  2. Step 2: Convert to fraction form
    2,124.35/3,186.64 = 663.62/x
  3. Step 3: Cross multiply
    2,124.35x = 3,186.64 × 663.62
  4. Step 4: Simplify right side
    2,124.35x = 2,114,711.90
  5. Step 5: Solve for x
    x = 2,114,711.90/2,124.35
  6. Step 6: Final answer
    x = 995.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.