Home / 3,146.40-4,717.80-2,791.08

Finding the Fourth Proportional to 3,146.40, 4,717.80 and 2,791.08

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Solution

The fourth proportional to 3,146.40, 4,717.80 and 2,791.08 is: 4,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.40 : 4,717.80 = 2,791.08 : x
  2. Step 2: Convert to fraction form
    3,146.40/4,717.80 = 2,791.08/x
  3. Step 3: Cross multiply
    3,146.40x = 4,717.80 × 2,791.08
  4. Step 4: Simplify right side
    3,146.40x = 13,167,757.22
  5. Step 5: Solve for x
    x = 13,167,757.22/3,146.40
  6. Step 6: Final answer
    x = 4,185.02

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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.