Home / 3,948.85-5,919.62-1,485.30

Finding the Fourth Proportional to 3,948.85, 5,919.62 and 1,485.30

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Solution

The fourth proportional to 3,948.85, 5,919.62 and 1,485.30 is: 2,226.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.85 : 5,919.62 = 1,485.30 : x
  2. Step 2: Convert to fraction form
    3,948.85/5,919.62 = 1,485.30/x
  3. Step 3: Cross multiply
    3,948.85x = 5,919.62 × 1,485.30
  4. Step 4: Simplify right side
    3,948.85x = 8,792,426.36
  5. Step 5: Solve for x
    x = 8,792,426.36/3,948.85
  6. Step 6: Final answer
    x = 2,226.58

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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.