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Finding the Fourth Proportional to 2,503.35, 3,755.03 and 771.99

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Solution

The fourth proportional to 2,503.35, 3,755.03 and 771.99 is: 1,157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.35 : 3,755.03 = 771.99 : x
  2. Step 2: Convert to fraction form
    2,503.35/3,755.03 = 771.99/x
  3. Step 3: Cross multiply
    2,503.35x = 3,755.03 × 771.99
  4. Step 4: Simplify right side
    2,503.35x = 2,898,841.75
  5. Step 5: Solve for x
    x = 2,898,841.75/2,503.35
  6. Step 6: Final answer
    x = 1,157.99

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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.