Home / 2,791.16-4,186.20-2,652.40

Finding the Fourth Proportional to 2,791.16, 4,186.20 and 2,652.40

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Solution

The fourth proportional to 2,791.16, 4,186.20 and 2,652.40 is: 3,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.16 : 4,186.20 = 2,652.40 : x
  2. Step 2: Convert to fraction form
    2,791.16/4,186.20 = 2,652.40/x
  3. Step 3: Cross multiply
    2,791.16x = 4,186.20 × 2,652.40
  4. Step 4: Simplify right side
    2,791.16x = 11,103,476.88
  5. Step 5: Solve for x
    x = 11,103,476.88/2,791.16
  6. Step 6: Final answer
    x = 3,978.09

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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.