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Finding the Fourth Proportional to 2,475.38, 3,713.09 and 744

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Solution

The fourth proportional to 2,475.38, 3,713.09 and 744 is: 1,116.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.38 : 3,713.09 = 744 : x
  2. Step 2: Convert to fraction form
    2,475.38/3,713.09 = 744/x
  3. Step 3: Cross multiply
    2,475.38x = 3,713.09 × 744
  4. Step 4: Simplify right side
    2,475.38x = 2,762,538.96
  5. Step 5: Solve for x
    x = 2,762,538.96/2,475.38
  6. Step 6: Final answer
    x = 1,116.01

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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.