Home / 1,839.36-2,759.18-540.82

Finding the Fourth Proportional to 1,839.36, 2,759.18 and 540.82

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Solution

The fourth proportional to 1,839.36, 2,759.18 and 540.82 is: 811.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.36 : 2,759.18 = 540.82 : x
  2. Step 2: Convert to fraction form
    1,839.36/2,759.18 = 540.82/x
  3. Step 3: Cross multiply
    1,839.36x = 2,759.18 × 540.82
  4. Step 4: Simplify right side
    1,839.36x = 1,492,219.73
  5. Step 5: Solve for x
    x = 1,492,219.73/1,839.36
  6. Step 6: Final answer
    x = 811.27

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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.