Home / 7,638.40-11,453.82-2,443.60

Finding the Fourth Proportional to 7,638.40, 11,453.82 and 2,443.60

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Solution

The fourth proportional to 7,638.40, 11,453.82 and 2,443.60 is: 3,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.40 : 11,453.82 = 2,443.60 : x
  2. Step 2: Convert to fraction form
    7,638.40/11,453.82 = 2,443.60/x
  3. Step 3: Cross multiply
    7,638.40x = 11,453.82 × 2,443.60
  4. Step 4: Simplify right side
    7,638.40x = 27,988,554.55
  5. Step 5: Solve for x
    x = 27,988,554.55/7,638.40
  6. Step 6: Final answer
    x = 3,664.19

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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.