Home / 4,913.94-6,780.62-2,789.31

Finding the Fourth Proportional to 4,913.94, 6,780.62 and 2,789.31

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Solution

The fourth proportional to 4,913.94, 6,780.62 and 2,789.31 is: 3,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.94 : 6,780.62 = 2,789.31 : x
  2. Step 2: Convert to fraction form
    4,913.94/6,780.62 = 2,789.31/x
  3. Step 3: Cross multiply
    4,913.94x = 6,780.62 × 2,789.31
  4. Step 4: Simplify right side
    4,913.94x = 18,913,251.17
  5. Step 5: Solve for x
    x = 18,913,251.17/4,913.94
  6. Step 6: Final answer
    x = 3,848.90

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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.