Home / 3,417.82-5,126.73-2,638.96

Finding the Fourth Proportional to 3,417.82, 5,126.73 and 2,638.96

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Solution

The fourth proportional to 3,417.82, 5,126.73 and 2,638.96 is: 3,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.82 : 5,126.73 = 2,638.96 : x
  2. Step 2: Convert to fraction form
    3,417.82/5,126.73 = 2,638.96/x
  3. Step 3: Cross multiply
    3,417.82x = 5,126.73 × 2,638.96
  4. Step 4: Simplify right side
    3,417.82x = 13,529,209.77
  5. Step 5: Solve for x
    x = 13,529,209.77/3,417.82
  6. Step 6: Final answer
    x = 3,958.43

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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.