Home / 1,818.06-2,722.44-1,261.98

Finding the Fourth Proportional to 1,818.06, 2,722.44 and 1,261.98

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Solution

The fourth proportional to 1,818.06, 2,722.44 and 1,261.98 is: 1,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.06 : 2,722.44 = 1,261.98 : x
  2. Step 2: Convert to fraction form
    1,818.06/2,722.44 = 1,261.98/x
  3. Step 3: Cross multiply
    1,818.06x = 2,722.44 × 1,261.98
  4. Step 4: Simplify right side
    1,818.06x = 3,435,664.83
  5. Step 5: Solve for x
    x = 3,435,664.83/1,818.06
  6. Step 6: Final answer
    x = 1,889.74

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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.