Home / 3,142.83-4,712.64-1,662.86

Finding the Fourth Proportional to 3,142.83, 4,712.64 and 1,662.86

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Solution

The fourth proportional to 3,142.83, 4,712.64 and 1,662.86 is: 2,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.83 : 4,712.64 = 1,662.86 : x
  2. Step 2: Convert to fraction form
    3,142.83/4,712.64 = 1,662.86/x
  3. Step 3: Cross multiply
    3,142.83x = 4,712.64 × 1,662.86
  4. Step 4: Simplify right side
    3,142.83x = 7,836,448.94
  5. Step 5: Solve for x
    x = 7,836,448.94/3,142.83
  6. Step 6: Final answer
    x = 2,493.43

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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.