Home / 3,478.20-5,216.58-1,629.48

Finding the Fourth Proportional to 3,478.20, 5,216.58 and 1,629.48

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Solution

The fourth proportional to 3,478.20, 5,216.58 and 1,629.48 is: 2,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.20 : 5,216.58 = 1,629.48 : x
  2. Step 2: Convert to fraction form
    3,478.20/5,216.58 = 1,629.48/x
  3. Step 3: Cross multiply
    3,478.20x = 5,216.58 × 1,629.48
  4. Step 4: Simplify right side
    3,478.20x = 8,500,312.78
  5. Step 5: Solve for x
    x = 8,500,312.78/3,478.20
  6. Step 6: Final answer
    x = 2,443.88

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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.