Home / 3,946.89-5,446.56-2,178.48

Finding the Fourth Proportional to 3,946.89, 5,446.56 and 2,178.48

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Solution

The fourth proportional to 3,946.89, 5,446.56 and 2,178.48 is: 3,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.89 : 5,446.56 = 2,178.48 : x
  2. Step 2: Convert to fraction form
    3,946.89/5,446.56 = 2,178.48/x
  3. Step 3: Cross multiply
    3,946.89x = 5,446.56 × 2,178.48
  4. Step 4: Simplify right side
    3,946.89x = 11,865,222.03
  5. Step 5: Solve for x
    x = 11,865,222.03/3,946.89
  6. Step 6: Final answer
    x = 3,006.22

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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.