Home / 4,745.60-7,125.60-3,291.20

Finding the Fourth Proportional to 4,745.60, 7,125.60 and 3,291.20

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Solution

The fourth proportional to 4,745.60, 7,125.60 and 3,291.20 is: 4,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.60 : 7,125.60 = 3,291.20 : x
  2. Step 2: Convert to fraction form
    4,745.60/7,125.60 = 3,291.20/x
  3. Step 3: Cross multiply
    4,745.60x = 7,125.60 × 3,291.20
  4. Step 4: Simplify right side
    4,745.60x = 23,451,774.72
  5. Step 5: Solve for x
    x = 23,451,774.72/4,745.60
  6. Step 6: Final answer
    x = 4,941.79

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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.