Home / 4,914.19-6,780.99-2,789.56

Finding the Fourth Proportional to 4,914.19, 6,780.99 and 2,789.56

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Solution

The fourth proportional to 4,914.19, 6,780.99 and 2,789.56 is: 3,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.19 : 6,780.99 = 2,789.56 : x
  2. Step 2: Convert to fraction form
    4,914.19/6,780.99 = 2,789.56/x
  3. Step 3: Cross multiply
    4,914.19x = 6,780.99 × 2,789.56
  4. Step 4: Simplify right side
    4,914.19x = 18,915,978.46
  5. Step 5: Solve for x
    x = 18,915,978.46/4,914.19
  6. Step 6: Final answer
    x = 3,849.26

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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.