Home / 1,818.15-2,727.24-1,126.83

Finding the Fourth Proportional to 1,818.15, 2,727.24 and 1,126.83

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Solution

The fourth proportional to 1,818.15, 2,727.24 and 1,126.83 is: 1,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.15 : 2,727.24 = 1,126.83 : x
  2. Step 2: Convert to fraction form
    1,818.15/2,727.24 = 1,126.83/x
  3. Step 3: Cross multiply
    1,818.15x = 2,727.24 × 1,126.83
  4. Step 4: Simplify right side
    1,818.15x = 3,073,135.85
  5. Step 5: Solve for x
    x = 3,073,135.85/1,818.15
  6. Step 6: Final answer
    x = 1,690.25

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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.