Home / 4,905.56-6,769.78-2,809.69

Finding the Fourth Proportional to 4,905.56, 6,769.78 and 2,809.69

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Solution

The fourth proportional to 4,905.56, 6,769.78 and 2,809.69 is: 3,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.56 : 6,769.78 = 2,809.69 : x
  2. Step 2: Convert to fraction form
    4,905.56/6,769.78 = 2,809.69/x
  3. Step 3: Cross multiply
    4,905.56x = 6,769.78 × 2,809.69
  4. Step 4: Simplify right side
    4,905.56x = 19,020,959.22
  5. Step 5: Solve for x
    x = 19,020,959.22/4,905.56
  6. Step 6: Final answer
    x = 3,877.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.