Home / 4,920.60-7,375.32-3,072.54

Finding the Fourth Proportional to 4,920.60, 7,375.32 and 3,072.54

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Solution

The fourth proportional to 4,920.60, 7,375.32 and 3,072.54 is: 4,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.60 : 7,375.32 = 3,072.54 : x
  2. Step 2: Convert to fraction form
    4,920.60/7,375.32 = 3,072.54/x
  3. Step 3: Cross multiply
    4,920.60x = 7,375.32 × 3,072.54
  4. Step 4: Simplify right side
    4,920.60x = 22,660,965.71
  5. Step 5: Solve for x
    x = 22,660,965.71/4,920.60
  6. Step 6: Final answer
    x = 4,605.33

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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.