Home / 3,858,939.30-5,325,071.79-2,139,898.98

Finding the Fourth Proportional to 3,858,939.30, 5,325,071.79 and 2,139,898.98

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Solution

The fourth proportional to 3,858,939.30, 5,325,071.79 and 2,139,898.98 is: 2,952,913.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,939.30 : 5,325,071.79 = 2,139,898.98 : x
  2. Step 2: Convert to fraction form
    3,858,939.30/5,325,071.79 = 2,139,898.98/x
  3. Step 3: Cross multiply
    3,858,939.30x = 5,325,071.79 × 2,139,898.98
  4. Step 4: Simplify right side
    3,858,939.30x = 11,395,115,691,847.77
  5. Step 5: Solve for x
    x = 11,395,115,691,847.77/3,858,939.30
  6. Step 6: Final answer
    x = 2,952,913.95

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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.