Home / 2,912.11-4,018.47-2,029.81

Finding the Fourth Proportional to 2,912.11, 4,018.47 and 2,029.81

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Solution

The fourth proportional to 2,912.11, 4,018.47 and 2,029.81 is: 2,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.11 : 4,018.47 = 2,029.81 : x
  2. Step 2: Convert to fraction form
    2,912.11/4,018.47 = 2,029.81/x
  3. Step 3: Cross multiply
    2,912.11x = 4,018.47 × 2,029.81
  4. Step 4: Simplify right side
    2,912.11x = 8,156,730.59
  5. Step 5: Solve for x
    x = 8,156,730.59/2,912.11
  6. Step 6: Final answer
    x = 2,800.97

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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.