Home / 2,551.20-3,818.70-1,822.20

Finding the Fourth Proportional to 2,551.20, 3,818.70 and 1,822.20

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Solution

The fourth proportional to 2,551.20, 3,818.70 and 1,822.20 is: 2,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.20 : 3,818.70 = 1,822.20 : x
  2. Step 2: Convert to fraction form
    2,551.20/3,818.70 = 1,822.20/x
  3. Step 3: Cross multiply
    2,551.20x = 3,818.70 × 1,822.20
  4. Step 4: Simplify right side
    2,551.20x = 6,958,435.14
  5. Step 5: Solve for x
    x = 6,958,435.14/2,551.20
  6. Step 6: Final answer
    x = 2,727.51

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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.