Home / 4,913.71-6,780.77-2,789.18

Finding the Fourth Proportional to 4,913.71, 6,780.77 and 2,789.18

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Solution

The fourth proportional to 4,913.71, 6,780.77 and 2,789.18 is: 3,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.71 : 6,780.77 = 2,789.18 : x
  2. Step 2: Convert to fraction form
    4,913.71/6,780.77 = 2,789.18/x
  3. Step 3: Cross multiply
    4,913.71x = 6,780.77 × 2,789.18
  4. Step 4: Simplify right side
    4,913.71x = 18,912,788.07
  5. Step 5: Solve for x
    x = 18,912,788.07/4,913.71
  6. Step 6: Final answer
    x = 3,848.98

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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.