Home / 2,910.51-4,033.43-2,855.11

Finding the Fourth Proportional to 2,910.51, 4,033.43 and 2,855.11

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Solution

The fourth proportional to 2,910.51, 4,033.43 and 2,855.11 is: 3,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.51 : 4,033.43 = 2,855.11 : x
  2. Step 2: Convert to fraction form
    2,910.51/4,033.43 = 2,855.11/x
  3. Step 3: Cross multiply
    2,910.51x = 4,033.43 × 2,855.11
  4. Step 4: Simplify right side
    2,910.51x = 11,515,886.33
  5. Step 5: Solve for x
    x = 11,515,886.33/2,910.51
  6. Step 6: Final answer
    x = 3,956.66

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.