Home / 3,946.05-5,445.36-2,177.82

Finding the Fourth Proportional to 3,946.05, 5,445.36 and 2,177.82

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Solution

The fourth proportional to 3,946.05, 5,445.36 and 2,177.82 is: 3,005.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.05 : 5,445.36 = 2,177.82 : x
  2. Step 2: Convert to fraction form
    3,946.05/5,445.36 = 2,177.82/x
  3. Step 3: Cross multiply
    3,946.05x = 5,445.36 × 2,177.82
  4. Step 4: Simplify right side
    3,946.05x = 11,859,013.92
  5. Step 5: Solve for x
    x = 11,859,013.92/3,946.05
  6. Step 6: Final answer
    x = 3,005.29

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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.