Home / 4,845.36-6,691.32-4,142.64

Finding the Fourth Proportional to 4,845.36, 6,691.32 and 4,142.64

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Solution

The fourth proportional to 4,845.36, 6,691.32 and 4,142.64 is: 5,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.36 : 6,691.32 = 4,142.64 : x
  2. Step 2: Convert to fraction form
    4,845.36/6,691.32 = 4,142.64/x
  3. Step 3: Cross multiply
    4,845.36x = 6,691.32 × 4,142.64
  4. Step 4: Simplify right side
    4,845.36x = 27,719,729.88
  5. Step 5: Solve for x
    x = 27,719,729.88/4,845.36
  6. Step 6: Final answer
    x = 5,720.88

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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.