Home / 3,948.85-5,917.62-2,900.62

Finding the Fourth Proportional to 3,948.85, 5,917.62 and 2,900.62

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Solution

The fourth proportional to 3,948.85, 5,917.62 and 2,900.62 is: 4,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.85 : 5,917.62 = 2,900.62 : x
  2. Step 2: Convert to fraction form
    3,948.85/5,917.62 = 2,900.62/x
  3. Step 3: Cross multiply
    3,948.85x = 5,917.62 × 2,900.62
  4. Step 4: Simplify right side
    3,948.85x = 17,164,766.92
  5. Step 5: Solve for x
    x = 17,164,766.92/3,948.85
  6. Step 6: Final answer
    x = 4,346.78

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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.