Home / 3,420.82-5,123.94-2,599.48

Finding the Fourth Proportional to 3,420.82, 5,123.94 and 2,599.48

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Solution

The fourth proportional to 3,420.82, 5,123.94 and 2,599.48 is: 3,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.82 : 5,123.94 = 2,599.48 : x
  2. Step 2: Convert to fraction form
    3,420.82/5,123.94 = 2,599.48/x
  3. Step 3: Cross multiply
    3,420.82x = 5,123.94 × 2,599.48
  4. Step 4: Simplify right side
    3,420.82x = 13,319,579.55
  5. Step 5: Solve for x
    x = 13,319,579.55/3,420.82
  6. Step 6: Final answer
    x = 3,893.68

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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.