Home / 7,745.78-11,618.68-3,132.02

Finding the Fourth Proportional to 7,745.78, 11,618.68 and 3,132.02

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Solution

The fourth proportional to 7,745.78, 11,618.68 and 3,132.02 is: 4,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.78 : 11,618.68 = 3,132.02 : x
  2. Step 2: Convert to fraction form
    7,745.78/11,618.68 = 3,132.02/x
  3. Step 3: Cross multiply
    7,745.78x = 11,618.68 × 3,132.02
  4. Step 4: Simplify right side
    7,745.78x = 36,389,938.13
  5. Step 5: Solve for x
    x = 36,389,938.13/7,745.78
  6. Step 6: Final answer
    x = 4,698.03

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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.