Home / 1,839.23-2,759.25-540.80

Finding the Fourth Proportional to 1,839.23, 2,759.25 and 540.80

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Solution

The fourth proportional to 1,839.23, 2,759.25 and 540.80 is: 811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.23 : 2,759.25 = 540.80 : x
  2. Step 2: Convert to fraction form
    1,839.23/2,759.25 = 540.80/x
  3. Step 3: Cross multiply
    1,839.23x = 2,759.25 × 540.80
  4. Step 4: Simplify right side
    1,839.23x = 1,492,202.40
  5. Step 5: Solve for x
    x = 1,492,202.40/1,839.23
  6. Step 6: Final answer
    x = 811.32

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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.