Home / 1,839.13-2,757.49-668.91

Finding the Fourth Proportional to 1,839.13, 2,757.49 and 668.91

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Solution

The fourth proportional to 1,839.13, 2,757.49 and 668.91 is: 1,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.13 : 2,757.49 = 668.91 : x
  2. Step 2: Convert to fraction form
    1,839.13/2,757.49 = 668.91/x
  3. Step 3: Cross multiply
    1,839.13x = 2,757.49 × 668.91
  4. Step 4: Simplify right side
    1,839.13x = 1,844,512.64
  5. Step 5: Solve for x
    x = 1,844,512.64/1,839.13
  6. Step 6: Final answer
    x = 1,002.93

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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.