Home / 3,321.57-4,985.43-1,679.27

Finding the Fourth Proportional to 3,321.57, 4,985.43 and 1,679.27

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Solution

The fourth proportional to 3,321.57, 4,985.43 and 1,679.27 is: 2,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.57 : 4,985.43 = 1,679.27 : x
  2. Step 2: Convert to fraction form
    3,321.57/4,985.43 = 1,679.27/x
  3. Step 3: Cross multiply
    3,321.57x = 4,985.43 × 1,679.27
  4. Step 4: Simplify right side
    3,321.57x = 8,371,858.11
  5. Step 5: Solve for x
    x = 8,371,858.11/3,321.57
  6. Step 6: Final answer
    x = 2,520.45

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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.