Home / 2,761.79-4,141.26-1,117.89

Finding the Fourth Proportional to 2,761.79, 4,141.26 and 1,117.89

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Solution

The fourth proportional to 2,761.79, 4,141.26 and 1,117.89 is: 1,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.79 : 4,141.26 = 1,117.89 : x
  2. Step 2: Convert to fraction form
    2,761.79/4,141.26 = 1,117.89/x
  3. Step 3: Cross multiply
    2,761.79x = 4,141.26 × 1,117.89
  4. Step 4: Simplify right side
    2,761.79x = 4,629,473.14
  5. Step 5: Solve for x
    x = 4,629,473.14/2,761.79
  6. Step 6: Final answer
    x = 1,676.26

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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.