Home / 2,085,908.09-3,129,761.18-1,126,173.11

Finding the Fourth Proportional to 2,085,908.09, 3,129,761.18 and 1,126,173.11

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Solution

The fourth proportional to 2,085,908.09, 3,129,761.18 and 1,126,173.11 is: 1,689,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,908.09 : 3,129,761.18 = 1,126,173.11 : x
  2. Step 2: Convert to fraction form
    2,085,908.09/3,129,761.18 = 1,126,173.11/x
  3. Step 3: Cross multiply
    2,085,908.09x = 3,129,761.18 × 1,126,173.11
  4. Step 4: Simplify right side
    2,085,908.09x = 3,524,652,862,469.77
  5. Step 5: Solve for x
    x = 3,524,652,862,469.77/2,085,908.09
  6. Step 6: Final answer
    x = 1,689,745.05

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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.