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Finding the Fourth Proportional to 1,241.83, 1,713.11 and 744.35

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Solution

The fourth proportional to 1,241.83, 1,713.11 and 744.35 is: 1,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.83 : 1,713.11 = 744.35 : x
  2. Step 2: Convert to fraction form
    1,241.83/1,713.11 = 744.35/x
  3. Step 3: Cross multiply
    1,241.83x = 1,713.11 × 744.35
  4. Step 4: Simplify right side
    1,241.83x = 1,275,153.99
  5. Step 5: Solve for x
    x = 1,275,153.99/1,241.83
  6. Step 6: Final answer
    x = 1,026.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.