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Finding the Fourth Proportional to 2,135.01, 3,203.94 and 748.35

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Solution

The fourth proportional to 2,135.01, 3,203.94 and 748.35 is: 1,123.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.01 : 3,203.94 = 748.35 : x
  2. Step 2: Convert to fraction form
    2,135.01/3,203.94 = 748.35/x
  3. Step 3: Cross multiply
    2,135.01x = 3,203.94 × 748.35
  4. Step 4: Simplify right side
    2,135.01x = 2,397,652.48
  5. Step 5: Solve for x
    x = 2,397,652.48/2,135.01
  6. Step 6: Final answer
    x = 1,123.02

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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.