Home / 3,985,117.40-5,979,425.70-2,091,415.94

Finding the Fourth Proportional to 3,985,117.40, 5,979,425.70 and 2,091,415.94

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Solution

The fourth proportional to 3,985,117.40, 5,979,425.70 and 2,091,415.94 is: 3,138,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,117.40 : 5,979,425.70 = 2,091,415.94 : x
  2. Step 2: Convert to fraction form
    3,985,117.40/5,979,425.70 = 2,091,415.94/x
  3. Step 3: Cross multiply
    3,985,117.40x = 5,979,425.70 × 2,091,415.94
  4. Step 4: Simplify right side
    3,985,117.40x = 12,505,466,221,025.66
  5. Step 5: Solve for x
    x = 12,505,466,221,025.66/3,985,117.40
  6. Step 6: Final answer
    x = 3,138,042.11

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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.