Home / 3,629.60-5,442.72-2,169.44

Finding the Fourth Proportional to 3,629.60, 5,442.72 and 2,169.44

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Solution

The fourth proportional to 3,629.60, 5,442.72 and 2,169.44 is: 3,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.60 : 5,442.72 = 2,169.44 : x
  2. Step 2: Convert to fraction form
    3,629.60/5,442.72 = 2,169.44/x
  3. Step 3: Cross multiply
    3,629.60x = 5,442.72 × 2,169.44
  4. Step 4: Simplify right side
    3,629.60x = 11,807,654.48
  5. Step 5: Solve for x
    x = 11,807,654.48/3,629.60
  6. Step 6: Final answer
    x = 3,253.16

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1.5x scale

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.