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Finding the Fourth Proportional to 2,503.35, 3,755.20 and 748.21

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Solution

The fourth proportional to 2,503.35, 3,755.20 and 748.21 is: 1,122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.35 : 3,755.20 = 748.21 : x
  2. Step 2: Convert to fraction form
    2,503.35/3,755.20 = 748.21/x
  3. Step 3: Cross multiply
    2,503.35x = 3,755.20 × 748.21
  4. Step 4: Simplify right side
    2,503.35x = 2,809,678.19
  5. Step 5: Solve for x
    x = 2,809,678.19/2,503.35
  6. Step 6: Final answer
    x = 1,122.37

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1.5x scale

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.