Home / 3,857.61-5,323.41-2,179.01

Finding the Fourth Proportional to 3,857.61, 5,323.41 and 2,179.01

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Solution

The fourth proportional to 3,857.61, 5,323.41 and 2,179.01 is: 3,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.61 : 5,323.41 = 2,179.01 : x
  2. Step 2: Convert to fraction form
    3,857.61/5,323.41 = 2,179.01/x
  3. Step 3: Cross multiply
    3,857.61x = 5,323.41 × 2,179.01
  4. Step 4: Simplify right side
    3,857.61x = 11,599,781.35
  5. Step 5: Solve for x
    x = 11,599,781.35/3,857.61
  6. Step 6: Final answer
    x = 3,006.98

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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.