Home / 3,985,116.40-5,979,424.20-2,091,414.94

Finding the Fourth Proportional to 3,985,116.40, 5,979,424.20 and 2,091,414.94

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Solution

The fourth proportional to 3,985,116.40, 5,979,424.20 and 2,091,414.94 is: 3,138,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,116.40 : 5,979,424.20 = 2,091,414.94 : x
  2. Step 2: Convert to fraction form
    3,985,116.40/5,979,424.20 = 2,091,414.94/x
  3. Step 3: Cross multiply
    3,985,116.40x = 5,979,424.20 × 2,091,414.94
  4. Step 4: Simplify right side
    3,985,116.40x = 12,505,457,104,477.55
  5. Step 5: Solve for x
    x = 12,505,457,104,477.55/3,985,116.40
  6. Step 6: Final answer
    x = 3,138,040.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.