Home / 2,744.21-4,115.80-742.87

Finding the Fourth Proportional to 2,744.21, 4,115.80 and 742.87

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Solution

The fourth proportional to 2,744.21, 4,115.80 and 742.87 is: 1,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,744.21 : 4,115.80 = 742.87 : x
  2. Step 2: Convert to fraction form
    2,744.21/4,115.80 = 742.87/x
  3. Step 3: Cross multiply
    2,744.21x = 4,115.80 × 742.87
  4. Step 4: Simplify right side
    2,744.21x = 3,057,506.24
  5. Step 5: Solve for x
    x = 3,057,506.24/2,744.21
  6. Step 6: Final answer
    x = 1,114.17

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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.