Home / 2,747.60-3,791.52-1,628.64

Finding the Fourth Proportional to 2,747.60, 3,791.52 and 1,628.64

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Solution

The fourth proportional to 2,747.60, 3,791.52 and 1,628.64 is: 2,247.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.60 : 3,791.52 = 1,628.64 : x
  2. Step 2: Convert to fraction form
    2,747.60/3,791.52 = 1,628.64/x
  3. Step 3: Cross multiply
    2,747.60x = 3,791.52 × 1,628.64
  4. Step 4: Simplify right side
    2,747.60x = 6,175,021.13
  5. Step 5: Solve for x
    x = 6,175,021.13/2,747.60
  6. Step 6: Final answer
    x = 2,247.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.