Home / 2,826.64-4,239.96-2,761.84

Finding the Fourth Proportional to 2,826.64, 4,239.96 and 2,761.84

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Solution

The fourth proportional to 2,826.64, 4,239.96 and 2,761.84 is: 4,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.64 : 4,239.96 = 2,761.84 : x
  2. Step 2: Convert to fraction form
    2,826.64/4,239.96 = 2,761.84/x
  3. Step 3: Cross multiply
    2,826.64x = 4,239.96 × 2,761.84
  4. Step 4: Simplify right side
    2,826.64x = 11,710,091.13
  5. Step 5: Solve for x
    x = 11,710,091.13/2,826.64
  6. Step 6: Final answer
    x = 4,142.76

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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.