Home / 4,918.50-6,786.08-2,928.06

Finding the Fourth Proportional to 4,918.50, 6,786.08 and 2,928.06

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Solution

The fourth proportional to 4,918.50, 6,786.08 and 2,928.06 is: 4,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.50 : 6,786.08 = 2,928.06 : x
  2. Step 2: Convert to fraction form
    4,918.50/6,786.08 = 2,928.06/x
  3. Step 3: Cross multiply
    4,918.50x = 6,786.08 × 2,928.06
  4. Step 4: Simplify right side
    4,918.50x = 19,870,049.40
  5. Step 5: Solve for x
    x = 19,870,049.40/4,918.50
  6. Step 6: Final answer
    x = 4,039.86

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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.