Home / 3,745.85-5,618.87-972.46

Finding the Fourth Proportional to 3,745.85, 5,618.87 and 972.46

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Solution

The fourth proportional to 3,745.85, 5,618.87 and 972.46 is: 1,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.85 : 5,618.87 = 972.46 : x
  2. Step 2: Convert to fraction form
    3,745.85/5,618.87 = 972.46/x
  3. Step 3: Cross multiply
    3,745.85x = 5,618.87 × 972.46
  4. Step 4: Simplify right side
    3,745.85x = 5,464,100.52
  5. Step 5: Solve for x
    x = 5,464,100.52/3,745.85
  6. Step 6: Final answer
    x = 1,458.71

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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.