Home / 2,918.22-4,374.28-2,185.57

Finding the Fourth Proportional to 2,918.22, 4,374.28 and 2,185.57

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Solution

The fourth proportional to 2,918.22, 4,374.28 and 2,185.57 is: 3,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.22 : 4,374.28 = 2,185.57 : x
  2. Step 2: Convert to fraction form
    2,918.22/4,374.28 = 2,185.57/x
  3. Step 3: Cross multiply
    2,918.22x = 4,374.28 × 2,185.57
  4. Step 4: Simplify right side
    2,918.22x = 9,560,295.14
  5. Step 5: Solve for x
    x = 9,560,295.14/2,918.22
  6. Step 6: Final answer
    x = 3,276.07

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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.