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Finding the Fourth Proportional to 2,503.68, 3,755.75 and 654.79

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Solution

The fourth proportional to 2,503.68, 3,755.75 and 654.79 is: 982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.68 : 3,755.75 = 654.79 : x
  2. Step 2: Convert to fraction form
    2,503.68/3,755.75 = 654.79/x
  3. Step 3: Cross multiply
    2,503.68x = 3,755.75 × 654.79
  4. Step 4: Simplify right side
    2,503.68x = 2,459,221.92
  5. Step 5: Solve for x
    x = 2,459,221.92/2,503.68
  6. Step 6: Final answer
    x = 982.24

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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.