Home / 2,839.21-4,257.49-1,571.90

Finding the Fourth Proportional to 2,839.21, 4,257.49 and 1,571.90

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Solution

The fourth proportional to 2,839.21, 4,257.49 and 1,571.90 is: 2,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.21 : 4,257.49 = 1,571.90 : x
  2. Step 2: Convert to fraction form
    2,839.21/4,257.49 = 1,571.90/x
  3. Step 3: Cross multiply
    2,839.21x = 4,257.49 × 1,571.90
  4. Step 4: Simplify right side
    2,839.21x = 6,692,355.24
  5. Step 5: Solve for x
    x = 6,692,355.24/2,839.21
  6. Step 6: Final answer
    x = 2,357.12

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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.