Home / 4,913.88-6,781.46-2,789.64

Finding the Fourth Proportional to 4,913.88, 6,781.46 and 2,789.64

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Solution

The fourth proportional to 4,913.88, 6,781.46 and 2,789.64 is: 3,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.88 : 6,781.46 = 2,789.64 : x
  2. Step 2: Convert to fraction form
    4,913.88/6,781.46 = 2,789.64/x
  3. Step 3: Cross multiply
    4,913.88x = 6,781.46 × 2,789.64
  4. Step 4: Simplify right side
    4,913.88x = 18,917,832.07
  5. Step 5: Solve for x
    x = 18,917,832.07/4,913.88
  6. Step 6: Final answer
    x = 3,849.88

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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.