Home / 1,818.09-2,722.98-1,427.20

Finding the Fourth Proportional to 1,818.09, 2,722.98 and 1,427.20

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Solution

The fourth proportional to 1,818.09, 2,722.98 and 1,427.20 is: 2,137.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.09 : 2,722.98 = 1,427.20 : x
  2. Step 2: Convert to fraction form
    1,818.09/2,722.98 = 1,427.20/x
  3. Step 3: Cross multiply
    1,818.09x = 2,722.98 × 1,427.20
  4. Step 4: Simplify right side
    1,818.09x = 3,886,237.06
  5. Step 5: Solve for x
    x = 3,886,237.06/1,818.09
  6. Step 6: Final answer
    x = 2,137.54

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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.