Home / 2,620.11-3,615.33-1,958.55

Finding the Fourth Proportional to 2,620.11, 3,615.33 and 1,958.55

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Solution

The fourth proportional to 2,620.11, 3,615.33 and 1,958.55 is: 2,702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.11 : 3,615.33 = 1,958.55 : x
  2. Step 2: Convert to fraction form
    2,620.11/3,615.33 = 1,958.55/x
  3. Step 3: Cross multiply
    2,620.11x = 3,615.33 × 1,958.55
  4. Step 4: Simplify right side
    2,620.11x = 7,080,804.57
  5. Step 5: Solve for x
    x = 7,080,804.57/2,620.11
  6. Step 6: Final answer
    x = 2,702.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.