Home / 4,918.20-6,786.84-2,928.84

Finding the Fourth Proportional to 4,918.20, 6,786.84 and 2,928.84

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Solution

The fourth proportional to 4,918.20, 6,786.84 and 2,928.84 is: 4,041.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.20 : 6,786.84 = 2,928.84 : x
  2. Step 2: Convert to fraction form
    4,918.20/6,786.84 = 2,928.84/x
  3. Step 3: Cross multiply
    4,918.20x = 6,786.84 × 2,928.84
  4. Step 4: Simplify right side
    4,918.20x = 19,877,568.47
  5. Step 5: Solve for x
    x = 19,877,568.47/4,918.20
  6. Step 6: Final answer
    x = 4,041.63

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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.