Home / 2,826.13-3,902.04-2,161.84

Finding the Fourth Proportional to 2,826.13, 3,902.04 and 2,161.84

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Solution

The fourth proportional to 2,826.13, 3,902.04 and 2,161.84 is: 2,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.13 : 3,902.04 = 2,161.84 : x
  2. Step 2: Convert to fraction form
    2,826.13/3,902.04 = 2,161.84/x
  3. Step 3: Cross multiply
    2,826.13x = 3,902.04 × 2,161.84
  4. Step 4: Simplify right side
    2,826.13x = 8,435,586.15
  5. Step 5: Solve for x
    x = 8,435,586.15/2,826.13
  6. Step 6: Final answer
    x = 2,984.85

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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.